Question

Find derivative of 1- cos x/1+cos x​

Answer 1

Answer:

Step-by-step explanation:

1-cosx=2sin^2x/2

1+cosx=2cos^2x/2

Y= 1-cosx/1+cosx

y=(2sin^2x/2)/(2cos^2x/2)

=tan^2x/2

dy/dx=2tanx/2*sec^2x/2*1/2

=tanx/2*sec^2x/2