" D) "(1)/(1+cos x)du

" (*d) "int(1)/(1+cos x)dx

Evaluate : int (1)/(1+cos^(2) x)d x

Differentiate the following functions w.r.t.x. (1 - cos x)/(1 + cos x)

Differentiate the following w.r.t. x; tan^(-1) sqrt((1 - cos x)/(1 + cos x))

Differentiate the following w.r.t.x. "log" sqrt((1 - cos x)/(1 + cos x))

(d)/(dx)[tan^(-1)sqrt((1+(cos x)/(2))/(1-(cos x)/(2))))

Differentiate w.r.t x (1-cos x)//(1+ cos x)

differentiate (sin x)/(1+cos x)

Differentiate the following w.r.t. x : tan^-1 sqrt((1+cos x)/(1-cos x))

If u = tan^(-1) (( sqrt(1- x^(2) ) - 1)/( x) ) and v = sin^(-1) x , then (du)/(dv) is equal to a) sqrt( 1- x^2) b) - (1)/(2) c)1 d)-x