(sinx)^2+(cosx)^2=1 (Proof - No Unit Circle Required) Oct 6, 2017 12:36:22 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Tiago on Oct 6, 2017 12:36:22 GMT (sinx)^2+(cosx)^2=1 (Proof - No Unit Circle Required)