In the limit, as change in x approaches 0, (tan(𝛿x))/𝛿x=1 Oct 3, 2017 21:29:11 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Tiago on Oct 3, 2017 21:29:11 GMT In the limit, as change in x approaches 0, (tan(𝛿x))/𝛿x=1, tan(𝛿x)=0.