Direct Link to ALL Instagram Mathematics Proofs Posts [170]

Direct Link to ALL Instagram Mathematics Proofs Posts [170] Jul 23, 2020 20:45:22 GMT

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Post by Tiago on Jul 23, 2020 20:45:22 GMT

Number	Description	Category	Date	Link
1	arg(z_1*z_2)=arg(z_1)+arg(z_2) proof	Complex Numbers	Tuesday 16 October 2018	http://instagr.am/p/Bo_osnLAJmT
2	arg(z_1/z_2)=arg(z_1)-arg(z_2) proof	Complex Numbers	Tuesday 16 October 2018	http://instagr.am/p/BpAK5OVgH3f
3	\|z_1\|\|z_2\|=\|z_1*z_2\| proof	Complex Numbers	Wednesday 17 October 2018	http://instagr.am/p/BpCT8AaALg6
4	\|z_1/z_2\|=\|z_1\|/\|z_2\| proof	Complex Numbers	Wednesday 17 October 2018	http://instagr.am/p/BpCV7rmAFaY
5	Quadratic Formula Proof	Algebra	Friday 19 October 2018	http://instagr.am/p/BpHMZSlArxv
6	sin(A+B)=sinAcosB+cosAsinB geometrical proof	Trigonometry	Saturday 20 October 2018	http://instagr.am/p/BpJpVD2hK44
7	cos(A+B)=cosAcosB-sinAsinB geometrical proof	Trigonometry	Sunday 21 October 2018	http://instagr.am/p/BpL9j-QBuye
8	sin(A-B)=sinAcosB-cosAsinB geometrical proof	Trigonometry	Monday 22 October 2018	http://instagr.am/p/BpOWCzwBRn1
9	cos(A-B)=cosAcosB+sinAsinB geometrical proof	Trigonometry	Tuesday 23 October 2018	http://instagr.am/p/BpQYfGkB8WT
10	tan(A+B) and tan(A-B) proofs	Trigonometry	Tuesday 23 October 2018	http://instagr.am/p/BpRmU1sBss7
11	The cosine rule geometrical proof	Trigonometry	Thursday 25 October 2018	http://instagr.am/p/BpXBPK1BXFJ
12	Finding the three formulas for the area of a triangle, geometrically	Trigonometry	Friday 26 October 2018	http://instagr.am/p/BpZJKqLBzu8
13	Different combinations of the sine rule	Trigonometry	Saturday 27 October 2018	http://instagr.am/p/BpbnD2nhZAt
14	Pythagoras' Theorem	Pythagoras' Theorem	Sunday 28 October 2018	http://instagr.am/p/BpeEfy1hkEy
15	The first 8 out of 12 rules of logarithms	Logarithms	Wednesday 7 November 2018	http://instagr.am/p/Bp4X7z8hYFG
16	9 to 11 out of the 12 logarithmic rules	Logarithms	Wednesday 7 November 2018	http://instagr.am/p/Bp4YyTghjmj
17	12 out of 12 of the 12 logarithmic rules	Logarithms	Wednesday 7 November 2018	http://instagr.am/p/Bp4ZnkUBPoC
18	Area of an octagon proof	Areas	Thursday 8 November 2018	http://instagr.am/p/Bp6v7j3gNHY
19	Area of a pentagon proof part 1	Areas	Friday 9 November 2018	http://instagr.am/p/Bp9Xz30A8i7
20	Area of a pentagon proof, part 2 and 3	Areas	Friday 9 November 2018	http://instagr.am/p/Bp9YOeCAiR2
21	The linear interpolation formula for finding roots derived geometrically.	Linear Interpolation	Sunday 11 November 2018	http://instagr.am/p/BqCdsvkB6qm
22	How to turn the square root of 2 into a continued fraction	Fractions	Monday 12 November 2018	http://instagr.am/p/BqFxTi2BsDM
23	Finding the derivatives of sinx, cosx and tanx using algebra and limits	Differentiation	Tuesday 12 March 2019	http://instagr.am/p/Bu58I9DhgON
24	The volume of a sphere, derived using a semi-circle, Cartesian coordinates, the equation of a circle and the volumes of revolution formula	Calculus	Wednesday 13 March 2019	http://instagr.am/p/Bu8Y9UxhOCT
25	A useful visual method of representing 1/4 + 1/16 + 1/64 + 1/256 + 1/1024 + 1/4036 +... to infinitum equals 1/3	Fractions	Saturday 30 March 2019	http://instagr.am/p/BvoEBd-AvQC
26	Another visual mathematical proof. This demonstrates that 1/3 + 1/9 + 1/27 + 1/81 + 1/243 + 1/729 + ... to infinitum would equal ½	Fractions	Wednesday 3 April 2019	http://instagr.am/p/BvykeOgBi9d
27	Volume of a cone proof (part 1)	Calculus	Tuesday 9 April 2019	http://instagr.am/p/BwCbAF7hXCq
28	Volume of a cone proof (part 2)	Calculus	Tuesday 9 April 2019	http://instagr.am/p/BwCbQ1bBJW7
29	The area of a trapezium proof	Areas	Wednesday 17 April 2019	http://instagr.am/p/BwW6ob0hFm0
30	The trapezium rule formula	Calculus	Thursday 18 April 2019	http://instagr.am/p/BwY-MzlBnOP
31	Parallelogram proof	Vectors	Monday 22 April 2019	http://instagr.am/p/BwjdFAahKFs
32	How to derive the formula to find the angle between two vectors (in two dimensions)	Vectors	Saturday 27 April 2019	http://instagr.am/p/Bwwmjh3hNYb
33	How to come up with the area of an equilateral triangle geometrically	Areas	Monday 29 April 2019	http://instagr.am/p/Bw1V1gNB_Gh
34	How to find the derivates of y=arcsinx, y=arccosx and y=arctanx using implicit differentiation	Differentiation	Sunday 5 May 2019	http://instagr.am/p/BxEx6LtBCK6
35	Fundamental theorem of calculus derived in 9 easy steps	Calculus	Monday 5 August 2019	http://instagr.am/p/B0yHzOKhdAj
36	A quick way to count up all the numbers from 1 to 100 in one go	Summations	Saturday 5 October 2019	http://instagr.am/p/B3PQakpB8lK
37	This is how to get the formula for the sum of an arithmetic series	Arithmetic Series	Monday 7 October 2019	http://instagr.am/p/B3UMzUOhvRI
38	Pascal's triangle additions	Pascal's Triangle	Friday 11 October 2019	http://instagr.am/p/B3eXCdLBYcb
39	How to come up with a geometrical proof for the formula (n/6)*(n+1)(2n+1) [PART 1]	Summations	Sunday 13 October 2019	http://instagr.am/p/B3jXRyFBlzR
40	How to come up with a geometrical proof for the formula (n/6)*(n+1)(2n+1) [PART 2]	Summations	Saturday 19 October 2019	http://instagr.am/p/B3y7K5CpWNN
41	Summing up odd numbers	Summations	Monday 21 October 2019	http://instagr.am/p/B34hVIFptnf
42	Summing up the cubes of natural numbers [PART 1]	Summations	Saturday 26 October 2019	http://instagr.am/p/B4FTSkZJ4bA
43	Summing up the cubes of natural numbers [PART 2]	Summations	Monday 28 October 2019	http://instagr.am/p/B4KhRE6pQdx
44	Visual proof of the distance formula in 3 dimensions	Pythagoras' Theorem	Wednesday 30 October 2019	http://instagr.am/p/B4PNQxcFgiO
45	The product rule derived from scratch	Differentiation	Sunday 3 November 2019	http://instagr.am/p/B4aBDebpaiv
46	The quotient rule derived from scratch	Differentiation	Tuesday 5 November 2019	http://instagr.am/p/B4fOmkMhGI1
47	How to come up with the function for e^x from scratch	Differentiation	Sunday 10 November 2019	http://instagr.am/p/B4rT4pVAW6G
48	A simple proof which demonstrates why 0.3 recurring is equal to a third	Algebra	Sunday 8 December 2019	http://instagr.am/p/B50V7RuJXwq
49	a/b + c/d = (ad+bc)/(bd) proof	Algebra	Monday 23 December 2019	http://instagr.am/p/B6ay7yRJd6p
50	if a/b=c/d and b and d are not equal to zero, a/b=(a+c)/(b+d)	Algebra	Thursday 2 January 2020	http://instagr.am/p/B6zzzZDJM6-
51	Algebraic golden ratio magic	Golden Ratio	Saturday 29 February 2020	http://instagr.am/p/B9Jwvbhpmoz
52	Factorial Proof [Further Pure Mathematics 2]	Factorials	Tuesday 3 March 2020	http://instagr.am/p/B9ROxTMppcA
53	This is how to prove that 1x1 + 3x2 + 5x3 + 7x4 +...+ (2(n-2)-1)(n-2) + (2(n-1)-1)(n-1) + (2n-1)n = (n/6)(n+1)(4n-1)	Summations	Monday 9 March 2020	http://instagr.am/p/B9g5GD2pM6p
54	Another example of an infinite nested radical. I used 4=√16 on this occasion	Infinite Nested Radicals	Thursday 12 March 2020	http://instagr.am/p/B9oxNGLJaDu
55	Finding the mean for two sets of numbers	The Mean	Saturday 14 March 2020	http://instagr.am/p/B9tu37RJlQn
56	How to prove that 1/3 + 1/9 + 1/27 + 1/81 +... will converge to a ½	Summations	Sunday 15 March 2020	http://instagr.am/p/B9xEvE1JBb7
57	Another way to prove that 0.999999999... is equal to 1	Summations	Monday 16 March 2020	http://instagr.am/p/B9zjfnkphfk
58	Another infinite nested radical	Infinite Nested Radicals	Tuesday 17 March 2020	http://instagr.am/p/B91R37pJKIG
59	One way to prove that cosh²x - sinh²x = 1 algebraically	Hyperbolic Functions	Wednesday 18 March 2020	http://instagr.am/p/B94RqpVJalt
60	Proofs for sinhAcoshB+coshAsinhB=sinh(A+B) and sinhAcoshB-coshAsinhB=sinh(A-B)	Hyperbolic Functions	Friday 20 March 2020	http://instagr.am/p/B99TQNcJ92x
61	How to prove that tanhx=(e²ˣ - 1)/(e²ˣ + 1). Further Pure Mathematics 3	Hyperbolic Functions	Saturday 21 March 2020	http://instagr.am/p/B9_eDToj7yX
62	Defining the formula for a circle in the complex plane (Further Pure Mathematics 2)	Complex Numbers	Sunday 22 March 2020	http://instagr.am/p/B-Cmx5ajdpH
63	Formula for an ellipse, from scratch [PART 1]	Algebra	Tuesday 24 March 2020	http://instagr.am/p/B-HhSsHD8CB
64	Formula for an ellipse, from scratch [PART 2]	Algebra	Tuesday 24 March 2020	http://instagr.am/p/B-HjhCwjccE
65	Formula for an ellipse, from scratch [PART 3]	Algebra	Tuesday 24 March 2020	http://instagr.am/p/B-HrozqjZ5P
66	Formula for an ellipse, from scratch [PART 4]	Algebra	Tuesday 24 March 2020	http://instagr.am/p/B-HtI54j9tt
67	Formula for an ellipse, from scratch [PART 5]	Algebra	Friday 27 March 2020	http://instagr.am/p/B-O-lDoDw1d
68	Formula of the area of an ellipse from scratch [PART 1]	Calculus	Saturday 28 March 2020	http://instagr.am/p/B-RoTnXDqgX
69	Formula of the area of an ellipse from scratch [PART 2]	Calculus	Sunday 29 March 2020	http://instagr.am/p/B-USlGGDa1s
70	Formula of the area of an ellipse from scratch [PART 3]	Calculus	Monday 30 March 2020	http://instagr.am/p/B-XMtLPDmQ8
71	Formula of the area of an ellipse from scratch [PART 4]	Calculus	Monday 30 March 2020	http://instagr.am/p/B-XdumyjzWa
72	Formula of the area of an ellipse from scratch [PART 5]	Calculus	Tuesday 31 March 2020	http://instagr.am/p/B-ZyNlOjNJH
73	Formula of the area of an ellipse from scratch [PART 6]	Calculus	Wednesday 1 April 2020	http://instagr.am/p/B-cRZ3ljMpX
74	A² + B² = C² Animation	Pythagoras' Theorem	Wednesday 1 April 2020	http://instagr.am/p/B-dJSIXjO2k
75	'The Nature of the Ellipse', by T.H, 03.04.2020 (Made on Desmos)	Graphing	Friday 3 April 2020	http://instagr.am/p/B-gjpbFDlM8
76	The general equation of a parabola is y²=4ax [PART 1]	Algebra	Saturday 4 April 2020	http://instagr.am/p/B-iaIJEj0is
77	The general equation of a parabola is y²=4ax [PART 2]	Algebra	Saturday 4 April 2020	http://instagr.am/p/B-jz9HZDfCU
78	How to get a singularity in 3D	Graphing	Sunday 5 April 2020	http://instagr.am/p/B-mEDD5jhLt
79	Conic Sections	Graphing	Monday 6 April 2020	http://instagr.am/p/B-o-jP3DpH0
80	The proof you require to get the cones for conic sections in A Level Further Pure 3 Mathematics	Algebra	Monday 6 April 2020	http://instagr.am/p/B-paOuZDfzD
81	How to get the Cartesian equation of a standard hyperbola	Hyperbolic Functions	Tuesday 7 April 2020	http://instagr.am/p/B-r6jPXjrOO
82	Standard Hyperbola (3D Graphing)	Hyperbolic Functions	Wednesday 8 April 2020	http://instagr.am/p/B-uKrhBjzMc
83	Area of a sector' proof	Areas	Thursday 9 April 2020	http://instagr.am/p/B-wiKWIj08M
84	A special animated graph of y=sinx {0≤x≤t}, {0≤t≤3π}	Graphing	Thursday 9 April 2020	http://instagr.am/p/B-w-xwAjVTI
85	Length of an arc proof	Constant of Proportionality	Friday 10 April 2020	http://instagr.am/p/B-zPGiaDTHh
86	How to derive the formula for a torus (doughnut), from scratch	Algebra	Saturday 11 April 2020	http://instagr.am/p/B-1YKxojK8e
87	Torus Animation	Graphing	Saturday 11 April 2020	http://instagr.am/p/B-1dzFCDugR
88	How to derive the formula for the surface area of a cone from scratch	Areas	Sunday 12 April 2020	http://instagr.am/p/B-4fn2Kjl5B
89	The proof for the surface area of a right circular cone	Areas	Monday 13 April 2020	http://instagr.am/p/B-67CTnjMLv
90	The proof of Heron's formula	Algebra	Tuesday 14 April 2020	http://instagr.am/p/B-9eHadDjZ9
91	How to derive the formula of the area of a surface of revolution from scratch [PART 1]	Calculus	Wednesday 15 April 2020	http://instagr.am/p/B_AXX1njJ7B
92	How to derive the formula of the area of a surface of revolution from scratch [PART 2]	Calculus	Thursday 16 April 2020	http://instagr.am/p/B_CmavrDuz7
93	How to derive the formula of the area of a surface of revolution from scratch [PART 3]	Calculus	Friday 17 April 2020	http://instagr.am/p/B_FNHJ5jNdM
94	How to derive the formula of the area of a surface of revolution from scratch [PART 4]	Calculus	Saturday 18 April 2020	http://instagr.am/p/B_Hw8PBjDiK
95	Parallelogram animation	Graphing	Sunday 19 April 2020	http://instagr.am/p/B_Ka9sFDDEo
96	Mid-point formula ((x₁+x₂)/2, (y₁+y₂)/2) proof	Graphing	Monday 20 April 2020	http://instagr.am/p/B_M1cAxDsIu
97	How to get the formula for an awesome shape, the hyperboloid	Graphing	Tuesday 21 April 2020	http://instagr.am/p/B_Pa8lVDJ5h
98	Hyperboloid animation	Graphing	Tuesday 21 April 2020	http://instagr.am/p/B_Pey9Yjgl7
99	How to get the formula for a paraboloid	Graphing	Wednesday 22 April 2020	http://instagr.am/p/B_SGZ8rpsG-
100	Visualising the paraboloid using Runiter's 3D graphing calculator	Graphing	Wednesday 22 April 2020	http://instagr.am/p/B_SKh5spKNk
101	This is how to get the formula of a sphere	Graphing	Thursday 23 April 2020	http://instagr.am/p/B_Uoc3Yp-3p
102	This is how to get the parameterised equations of a sphere with a centre (0, 0, 0)	Graphing	Friday 24 April 2020	http://instagr.am/p/B_XSlt4Dd6t
103	Infinitely Nested Instragram Stories	Instagram	Saturday 25 April 2020	http://instagr.am/p/B_aEKNjjeVR
104	This is how to get the equation of a spheroid	Graphing	Sunday 26 April 2020	http://instagr.am/p/B_casgkjdBf
105	This is how to get the volume of revolution formula	Calculus	Tuesday 28 April 2020	http://instagr.am/p/B_hvBvdD_-j
106	Ellipsoid Animation	Graphing	Wednesday 29 April 2020	http://instagr.am/p/B_kUlR-j36Z
107	How to get the formula for a hyperboloid of two sheets	Graphing	Thursday 30 April 2020	http://instagr.am/p/B_m6FnLDQTk
108	drawing made by ➡️ @demetrio.cran	Math Art	Friday 1 May 2020	http://instagr.am/p/B_pXfG5DIgh
109	This is how to prove that a(b+c)=ab+ac, the distributive property, in terms of vectors	Vectors	Saturday 2 May 2020	http://instagr.am/p/B_r7O44DnOg
110	Finding the scalar product of 2 vectors	Vectors	Monday 4 May 2020	http://instagr.am/p/B_xGJIRpevT
111	How to get the formula of a plane in 3 space	Vectors	Thursday 7 May 2020	http://instagr.am/p/B_416EzDCrM
112	x, y and z math art by ➡️ @mauver.art	Coordinates	Friday 8 May 2020	http://instagr.am/p/B_7R0sqjIZg
113	Proof I found on ➡️ @heymatheists which demonstrates visually that 1³ + 2³ + 3³ + ... + n³ = (1/4)*(n(n+1))²	Summations	Saturday 9 May 2020	http://instagr.am/p/B_99xLNjBxG
114	These workings will allow you to put a sphere anywhere in 3 space, parameterised or just ordinarily	Graphing	Sunday 10 May 2020	http://instagr.am/p/CAAjLz8jGjz
115	Exploring the 3D singularity equation, z=-100/(x²+y²), -10≤x≤10, -10≤y≤10 and -50≤z≤0 using Runiter's updated 3D graphing calculator	Graphing	Monday 11 May 2020	http://instagr.am/p/CADsCh8DfzK
116	Lionel Messi at the Solvay Conference 1927 Meme	Memes	Tuesday 12 May 2020	http://instagr.am/p/CAGIubrJpLS
117	How to get the parameterised and ordinary equations of a circle with a centre point (0, 0)	Graphing	Wednesday 13 May 2020	http://instagr.am/p/CAH04Tvj-6Y
118	This is how to quickly double the area of a square, which doesn't necessarily come intuitively	Mathematical Thinking	Thursday 14 May 2020	http://instagr.am/p/CAK8yNMjK6b
119	My Edexcel book collection	Math Studying	Thursday 14 May 2020	http://instagr.am/p/CALE5FTDUUR
120	Math art by Caleb Ogg	Math Art	Friday 15 May 2020	http://instagr.am/p/CANkLCcDAwJ
121	Equation of a straight line that passes through the point A with position vector 'a' and which is parallel to the vector 'b' can be written down as: r=a+tb	Vectors	Saturday 16 May 2020	http://instagr.am/p/CAPj72hjLu_
122	Ronaldinho at the Solvay Conference 1927 Meme	Memes	Saturday 16 May 2020	http://instagr.am/p/CAP3jLBjh8R
123	A way to get the parametric and ordinary equations for a circle with any centre	Graphing	Sunday 17 May 2020	http://instagr.am/p/CASfcj-DDYR
124	How to derive the formula to find the angle between two vectors (in two dimensions) using the cosine rule formula [LATEST VERSION]	Vectors	Monday 18 May 2020	http://instagr.am/p/CAVJJiujx-7
125	Just a simple area of a parallelogram proof	Areas	Wednesday 20 May 2020	http://instagr.am/p/CAZ5c5YpmPB
126	How to get the formula for the area of a parallelogram formed by the angle between 2 vectors on a flat plane	Vectors	Thursday 21 May 2020	http://instagr.am/p/CAcxtYyDRTN
127	Black Hole by Agnieszka Dorynska	Math Art	Friday 22 May 2020	http://instagr.am/p/CAfiAqCDSZp
128	axb = \|a\|\|b\|sinθ(n) or bxa = \|a\|\|b\|sinθ(-n)	Vectors	Saturday 23 May 2020	http://instagr.am/p/CAh8y9TjTYN
129	Elliptical Pool Table (Berger Dillon)	Math Art	Sunday 24 May 2020	http://instagr.am/p/CAkmET8jj-d
130	Definitions of a cross product in order to find ixi, jxj, kxk, ixj, jxk, kxi, jxi, kxj and ixk	Vectors	Monday 25 May 2020	http://instagr.am/p/CAnGmQBjMIH
131	How to get the cross product equation in terms of i, j and k and in determinant form	Vectors	Tuesday 26 May 2020	http://instagr.am/p/CApx49wjWT4
132	Area of a triangle formula, in terms of vectors	Vectors	Thursday 28 May 2020	http://instagr.am/p/CAu1dYrDB5F
133	(b - a)x(c - a) = (a x b)+(b x c)+(c x a) proof in terms of vectors	Vectors	Friday 29 May 2020	http://instagr.am/p/CAxd5RKDWTV
134	Trefoil Knot - Nico Meyer	Math Art	Saturday 30 May 2020	http://instagr.am/p/CA0I5RbDeMR
135	(b - a)x(c - a) = (a x b)+(b x c)+(c x a) proof in terms of vectors [continued]	Vectors	Sunday 31 May 2020	http://instagr.am/p/CA2uFVKp1bl
136	Another proof for the area of a triangle in terms of vectors	Vectors	Monday 1 June 2020	http://instagr.am/p/CA5S2mWpqCH
137	The area of a parallelogram [Vector alternative]	Vectors	Wednesday 3 June 2020	http://instagr.am/p/CA-WLYnjIKp
138	The triple scalar product workings	Vectors	Thursday 4 June 2020	http://instagr.am/p/CBA1QqtD1bV
139	Math art by Gabi Mitterer	Math Art	Friday 5 June 2020	http://instagr.am/p/CBDc3s_jTbM
140	This just verifies that a.(bxc)=b.(cxa)=c.(axb)	Vectors	Saturday 6 June 2020	http://instagr.am/p/CBGLbpnDYb1
141	This proves that a.(a x v)=0 for any vector 'v'	Vectors	Sunday 7 June 2020	http://instagr.am/p/CBIlsPYjzJQ
142	Triangular design made by ➡️ @bucwah called the 'Alkaloid Penrose'. Neat finish (lenticular printing) was impressively done by ➡️ @fraktality.	Vectors	Monday 8 June 2020	http://instagr.am/p/CBK0TYeDuCv
143	This is one proof for the volume of the parallelepiped	Volumes	Tuesday 9 June 2020	http://instagr.am/p/CBOK-ynJ_Nw
144	This is a weird way to get the golden ratio on your calculator	Golden Ratio	Thursday 11 June 2020	http://instagr.am/p/CBTfyuKje0N
145	6of2cube by Spiral Spoon	Math Art	Friday 12 June 2020	http://instagr.am/p/CBVcFmpjQlx
146	This is an expression which collapses to 1 quite beautifully	Trigonometry	Saturday 13 June 2020	http://instagr.am/p/CBXp4PWDFkD
147	This is the volume of a tetrahedron proof in terms of vectors	Vectors	Sunday 14 June 2020	http://instagr.am/p/CBa1YJFji_z
148	Insanity: Doing the same thing over and over again and expecting different results.' ~ Albert Einstein	Memes	Tuesday 16 June 2020	http://instagr.am/p/CBfuFXTj7wU
149	Net + VAT = Gross formula	Bookkeeping	Thursday 18 June 2020	http://instagr.am/p/CBlWJiOD2pG
150	Icosahedron by Petra Toedter	Math Art	Friday 19 June 2020	http://instagr.am/p/CBnCShcjAyF
151	the equation of a straight line passing through point 'A' with the position vector 'a' and parallel to the vector 'b', can also be written as: r x b = a x b	Vectors	Saturday 20 June 2020	http://instagr.am/p/CBqRw0WjdOx
152	Ramanujan's infinite nested radical	Infinite Nested Radicals	Sunday 21 June 2020	http://instagr.am/p/CBssxGXjRhD
153	Do you know all your angles?	Trigonometry	Tuesday 23 June 2020	http://instagr.am/p/CByEgcFjoYr
154	How to get the general Cartesian equation of a straight line whereby it passes through the point (x₁, y₁, z₁) and has direction ratios l:m:n and λ is a parameter	Vectors	Wednesday 24 June 2020	http://instagr.am/p/CB0f9swJG9p
155	Speed = Distance / Time [Lamborghini Gallardo Tribute]	Physics	Thursday 25 June 2020	http://instagr.am/p/CB2rFxhpYYC
156	Islamic Geometry by Alenka	Math Art	Friday 26 June 2020	http://instagr.am/p/CB5GX36JkaZ
157	Notes related to finding the equation of a plane in the scalar form	Vectors	Sunday 28 June 2020	http://instagr.am/p/CB-4BMpjQsY
158	Animated projection of a rotating tesseract [Jason Hise]	Math Art	Tuesday 30 June 2020	http://instagr.am/p/CCDRYihjz81
159	This is how to get the vector equation of a plane r = a + λb + μc	Vectors	Wednesday 1 July 2020	http://instagr.am/p/CCGaUJTD8f_
160	A square inscribed inside a semicircle with a radius 'r' will have the area which is that of 2/5 of the area of a square inscribed inside a full circle - with the equivalent radius	Geometry	Friday 3 July 2020	http://instagr.am/p/CCLD_C0DB71
161	x=√(r) Flute	Graphing	Sunday 5 July 2020	http://instagr.am/p/CCQ3JxKDTKW
162	Let's be honest, who needs Weetabix when you can have dice for breakfast?	Math Art	Monday 6 July 2020	http://instagr.am/p/CCSyyIxjJ1G
163	100% Proof! The Why of Maths, Received from Jane Hope	Math Books	Tuesday 7 July 2020	http://instagr.am/p/CCVuziSDUqY
164	The Newton - Raphson method Proof	Numerical Analysis	Wednesday 8 July 2020	http://instagr.am/p/CCYy1Epj7fz
165	The general statement is that if we add up the first 'n' positive odd numbers, we obtain the squared number 'n²' [Mathematical Induction]	Mathematical Induction	Sunday 12 July 2020	http://instagr.am/p/CCi8LVODkMa
166	Mathematical Induction Proof 2 (Summation)	Mathematical Induction	Tuesday 14 July 2020	http://instagr.am/p/CCnVqeMjiVz
167	Proving by mathematical induction that n³ - 7n + 9 is divisible by 3 for all integers n∈Z⁺	Mathematical Induction	Friday 17 July 2020	http://instagr.am/p/CCv3CazDLNw
168	Snub dodecahedron by @1karamba	Math Art	Sunday 19 July 2020	http://instagr.am/p/CC1LvaTD6Et
169	How to prove that 1/4 + 1/16 + 1/64 + 1/256 + 1/1024 +... converges to 1/3	Summations	Tuesday 21 July 2020	http://instagr.am/p/CC5-gmeDYVh
170	An interesting summation by @creative_math_	Summations	Wednesday 22 July 2020	http://instagr.am/p/CC8oM4ApDjv

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