If `sin(x+2 8^(@))=cos(3x-7 8^(@))` then `x=`

If f(x)=int_(2x)^(sinx)cos(t^(3))dt then f'(x) is equal to a) cos(sin^(3)x)cosx-2cos(8x^(3)) b) sin(sin^(3)x)sinx-2sin(8x^(3)) c) cos(cos^(3)x)cosx-2cos(x^(3)) d) cos(sin^(3)x)-cos(8x^(3))

If sin^(3)x cos3x+cos^(3)x sin3x=(3)/(8), then the value of 8sin4x is _(-)

8 * sin ((x) / (8)) * cos ((x) / (2)) * cos ((x) / (4)) * cos ((x) / (8)) =

If sin^(3) x cos 3x + cos^(3) x sin 3x = 3//8 , then the value of 8 sin 4x is ____________.

If sin^(3)x cos3x+cos^(3)x sin 3x=3//8 , then the value of sin 4x is ___________

If sin^(3)x cos3x+cos^(3)x sin 3x=3//8 , then the value of sin 4x is ___________

If sinx + sin^(2)x + sin^(3)x = 1 , then : cos^(6)x - 4cos^(4)x + 8cos^(2)x equals :

Period of ( 2 sin 2x -5 cos 2x )/( 7 cos x - 8 sin x) is

sin ^ (8) x-cos ^ (8) x = 1