Amitabh Udayiman
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 Sep30 awarded Explainer Sep24 awarded Autobiographer Nov8 awarded Popular Question May4 awarded Yearling Jun8 awarded Constituent Jun8 awarded Caucus May7 comment Point on the bisector and excenter I think yes.That's what the OP meant. May7 comment A trigonometric identity: $(\sin x)^{-2}+(\cos x)^{-2}=(\tan x+\cot x)^2$ @ Farhad Yusufali Check the third and fourth terms in line 2 of what you have done. May7 awarded Commentator May7 comment A trigonometric identity: $(\sin x)^{-2}+(\cos x)^{-2}=(\tan x+\cot x)^2$ Ok, then please post that mess here.The problem is not messy at all.That way you can get feedback on where you went wrong. May7 comment A trigonometric identity: $(\sin x)^{-2}+(\cos x)^{-2}=(\tan x+\cot x)^2$ What have you tried? May7 revised When did mathematicians think of axiomatically building or defining operations etc? added 399 characters in body May7 awarded Quorum May7 asked When did mathematicians think of axiomatically building or defining operations etc? May7 comment Why are imaginary numbers called imaginary numbers @ J.M. That was an informative article too. May7 answered Why are imaginary numbers called imaginary numbers May7 answered How do I use substitution in integrals? May7 revised Opinions on foundational math materials to teach 8th grade, 9th grade kids at a Summer Camp Added something May7 comment How do I use substitution in integrals? It helps to consult a standard textbook in calculus. :) May6 comment Find $s$ and $t$ with substitution? What have you tried?