" (i) "cos^(4)x

If cos x=t a n x , then which of the following is true? (a) 1/(sinx)+cos^4x=1 (b) 1/(sinx)+cos^4x=2 (c) cos^(54)x+cos^2x=1 (d) cos^4x+cos^2x=2

The period of sin^(4)x + cos^(4)x is

int (sinx . cos x)/(sin^(4)x + cos^(4)x) dx =

int_(0)^(pi/2)(cos^(4)x)/(cos^(4)x+sin^(4)x) dx =

int_(0)^(pi//2)(cos^(4)x)/((sin^(4)x+cos^(4)x))dx=(pi)/(4)

Evaluate int_(0)^(pi/2)(cos^(4)x)/(sin^(4)x+cos^(4)x)dx

The function (sin^(4)x+cos^(4)x)/(x+tan x) is

The period of sin^4 x + cos^(4) x is