If `sectheta=cos^2theta` then find the value of `sin^4theta+2sin^3theta+sin^2theta`

If 3cos theta=5sin theta, then find the value of 5sin theta-2sec^(3)theta+2cos theta5sin theta+2sec^(3)theta-2cos theta

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

lf 5 cos theta=7 sin theta , find the value of ( sin theta + cos theta)/(2 sin theta -3 cos theta) .

If sin theta = cos theta find the value of : 3 tan ^(2) theta+ 2 sin ^(2) theta -1

If cos theta + sin theta =sqrt2 cos theta , then the value of (cos theta -sin theta)/(sin theta) is

If 5sin^(2)theta+3cos^(2)theta=4 . Find the value of sin theta and cos theta :

If sec theta=4 , find the value of cos theta/(4cos^2 theta+3sin^2 theta) .

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

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