Differentiate w.r.t. x:
`(i)tan^(-1)((cosx)/(1+sinx))" "(ii)tan^(-1)(secx+tanx)`

Differentiate w.r.t x tan (x^2)

Differentiate the w.r.t x tan^-1((1+sin x)/(1- sin x)) .

Differentiate w.r.t. x: (1)/(tan x)+(1)/(cot x)

Differentiate w.r.t. x: (i)tan^(-1){sqrt((1+cosx)/(1-cosx))}" "(ii)tan^(-1){sqrt((1+sinx)/(1-sinx))}

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

Differentiate w.r.t x tan (sqrt(x))

Differentiate each of the following w.r.t. x: (i) tan^(-1)((1-cosx)/(sinx))" "(ii)tan^(-1)((cos x -sinx)/(cosx +sinx))

Differentiate w.r.t x tan^-1((2x)/(1+15x^2))

Differentiate the following w.r.t. x: cot^-1((1+cosx)/(sinx))

Differentiate the following w.r.t. x : tan^-1((cos 7x)/(1+sin 7x))