`sin^8theta + cos^8 theta = ?`

Prove that : sin^8 theta- cos^8 theta= (sin^2 theta- cos^2 theta)(1-2 sin^2 theta cos^2 theta) .

Simplify sin^8theta-cos^8theta

If theta be any real, prove that : cos4 theta=1-8 sin^2 theta cos^2 theta =1-8 cos^2 theta +8 cos^4 theta .

sin ^ (8) theta + cos ^ (8) theta =?

If sin^(8)theta+cos^(8)theta-1=0 then what is the value of cos^(2)theta sin^(2)theta

If cos theta+sec theta=-2,theta in[0,2 pi] then sin^(8)theta+cos^(8)theta is equal to

If costheta+sectheta=-2, theta in [0,2pi] then sin^8theta+cos^8theta is equal to

If sin^(8)theta+cos^(8)theta-1=0 , what is the value of cos^(2)thetasin^(2)theta (if thetane0or(pi)/(2)) ?

((cos theta + i sin theta) / (sin theta + i cos theta)) ^ (4) = cos8 theta + i sin8 theta