Evaluate `cos^4theta+sin^4theta`

Find the value of (sin^4theta+cos^4theta)/(1-2sin^2 thetacos ^2 theta)

Prove that-: cos^4theta/(1-sin^4theta)=(1-sin^2theta)/(1+sin^2theta)

Solve cos^(4)theta-sin^(4)theta=cos^2theta

If 3cot theta=4, find the value of (4cos theta-sin theta)/(2cos theta+sin theta)

If 3tan theta=4, find the value of (4cos theta-sin theta)/(2cos theta+sin theta)

find the value of the following expression cos^4theta-sin^4theta is :

If tan theta=(4)/(5), find the value of (cos theta-sin theta)/(cos theta+sin theta)

The value of 3(cos theta-sin theta)^(4)+6(sin theta+cos theta)^(2)+4 sin^(6) theta is where theta in ((pi)/(4),(pi)/(2)) (a) 13-4cos^(4) theta (b) 13-4cos^(6) theta (c) 13-4cos^(6) theta+ 2 sin^(4) theta cos^(2) theta (d) 13-4cos^(4) theta+ 2 sin^(4) theta cos^(2) theta

The value of (2(sin^6 theta+cos^6 theta)-3(sin^4 theta+cos^4 theta))/ (cos^4 theta-sin^4 theta-2cos^2 theta) is (2(sin^6 theta+cos^6 theta)-3(sin^4 theta+cos^4 theta))/ (cos^4 theta-sin^4 theta-2cos^2 theta) का मान है: