" If "(x)=(cos x-sin x)/(cos x+sin x)" then "f'(x)=

If f(x)=(cos x-sin x)/(cos x+sin x) then f^(-1)(x)=

Prove that (cos x + sin x)/(cos x - sin x) - (cos x - sin x)/(cos x + sin x) = 2 tan x

If f(x) = (cos x + i sin x)(cos 3x + i sin 3x) ….(cos (2n - 1)x + i(sin(2n - 1)x) , then f^(11)(x) is

2tan2x = (cos x + sin x) / (cos x-sin x) - (cos x-sin x) / (cos x + sin x)

(cos x)/(1-sin x)=(1+cos x+sin x)/(1+cos x-sin x)

If sin x+cos x=1+sin x.cos x then x=

If f(x)=|(10(sqrt(cos x)-sqrt(sin x))(sqrt(cos x)+ sqrt(sin x)))/(cos x+ sin x)| then number of natural numbers in the range of f(x) is

If (x)=2(7cos x+24sin x)(7sin x-24cos x)f(x)=2(7cos x+24sin x)(7sin x-24cos x) for every x in R, then maximum value of f(x)^((1)/(4))

The range of f(x)=cos x-sin x is