Question

differentiate tan^-1((a+bx)/(b-ax))
need help :'(

i thought to substitute x with tanx and then subtitute a with btan alpha :'(

Answer 1

substitute x with tan(theta) now theta is variable..and a/b with tan(alpha)

Answer 2

i did -_- then i will get the same answer that i got in previous one
which is not the answer

Answer 3

wait :OOOOOOOO
i was right :OOOOOOO
x=tanx
so i wilkl not ge t1
grr how dumb i m -_-

Answer 4

got it now thanx :D

Answer 5

you will get theta +alpha
=tan^-1x+alpha

Answer 6

lol yeah i didn't notice that :P