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

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

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

If sin theta+sin^(2)theta+sin^(3)theta=1, then prove that cos^(6)theta-4cos^(4)theta+8cos^(2)theta=4

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 :

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

2(sin^(6) theta + cos^(6)theta) - 3(sin^(4)theta + cos^(4)theta)+ 1 = 0

If tan theta=(3)/(4), then (4sin^(2)theta-2cos^(2)theta)/(4sin^(2)theta+3cos^(2)theta)

If tan theta=(3)/(4), then (4sin^(2)theta-2cos^(2)theta)/(4sin^(2)theta+3cos^(2)theta)

What is the value of ( 1 - 2 sin ^(2) theta cos^(2) theta )/( sin ^(4) theta + cos^(4) theta ) + 4 equal to