`cos^4x+sin^4x=1/2(1+2a^2-a^4)w h e r ea=sinx+cosx`

The value of 3(sinx - cosx)^4 + 6(sinx + cosx)^2 + 4 (sin^6 x + cos^6 x) is

If sinx+ sin^2x =1 , then cos^8x+ 2cos^6x +cos^4x =

If sinx+cosx=a , then prove that: sin^6x+cos^6x=1-3/4(a^2-1)^2 where a^2<=2

3 (sinx - cosx)^(4) + 6 (sinx + cosx)^(2) + 4(sin^(6)x + cos^(6)x) =

Solve the equation x^2-x+1=1/2+sqrt(x-3/4), w h e r e xgeq3/4

Solve the equation x^2-x+1=1/2+sqrt(x-3/4), w h e r e xgeq3/4

Solve the equation x^2-x+1=1/2+sqrt(x-3/4),w h e r exgeq3/4dot

If cos x=t a n x , then which of the following is true? (a) 1/(sinx)+cos^4x=1 (b) 1/(sinx)+cos^4x=2 (c) cos^(54)x+cos^2x=1 (d) cos^4x+cos^2x=2

If cos^4x/cos^2y+sin^4x/sin^2y=1 ,show that cos^4y/cos^2x+sin^4y/sin^2x=1