Asked by Jack

Given that tan(pi/2) = a. Express tan(x) and sin(x) in terms of a. Hint: Use the fact that x = 2.(pi/2)
Answered by Reiny
Something wrong with your question

tan(π/2) is undefined.
Answered by Jack
oh it's tan(x/2) = a ........... use the fact that x = 2 . x/2