(sin2x)/(1-cos2x)=cot x

(sin2x)/(1+cos2x)=tan x

Evaluate: int cot^-1((sin2x)/(1-cos2x))dx

Prove that (i).(sin 2x)/(1-cos 2x) = cot x" " (ii) .(1- cos 2x)/(1+ cos 2x) = tan^(2) x

int cot^(-1)((sin2x)/(1-cos2x)) dx = ?

(sin 2x)/(1- cos 2x ) = cot x

Evaluate: (i) int cot^(-1)((sin2x)/(1-cos2x))dx (ii) int sin^(-1)((2tan x)/(1+tan^(2)x))dx

prove that: (sin2x-sin2y)/(cos2y-cos2x)=cot(x+y)

(d)/(dx)[(1+cos2x+sin2x)/(1+sin2x-cos2x)]=

Prove that: (1+sin2x-cos2x)/(1+sin2x+cos2x)=tanx

Let P(x) = ((1- cos 2 x + sin 2x)/(1+ cos2x + sin2x))^(2) + ((1+ cot x + cot^(2) x)/( 1+ tan x+ tan^(2) x) ) , then the minimum value of P(x) equals