Show :
`Sin^4theta - Cos^4theta = Sin^2theta - Cos^2theta`

Show : 1 - Sin^4theta = Cos^2theta ( 1 + Sin^2theta )

The value of Sin^4 theta+Cos^4 theta+2 Sin^2 theta Cos^2 theta is: Sin^4 theta+Cos^4 theta+2 Sin^2 theta Cos^2 theta का मान है:

sin^(4)theta+cos^(4)theta=1-2sin^(2)theta cos^(2)theta

"(i) "sin^(4)theta-cos^(4)theta=sin^(2)theta-cos^(2)theta

sin^(4)theta+sin^(2)theta cos^(2)theta=

Prove that sin^(4)theta-cos^(4)theta=sin^(2)theta-cos^(2)theta

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

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

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