" 11."4sin x cos x+2sin x+2cos x+1=0

Solve the equation 4sin x cos x+2sin x+2cos x+1=0

Solve the equation 4 sin x cos x + 2 sin x + 2 cos x + 1 = 0

Solve the following trigonometric equation : 4sin x cos x+2 sinx+ 2cos x+1=0 .

(cos 4x sin 3x -cos 2x sin x )/(sin 4x sin x+ cos 6x cos x)= tan 2x

2tan2x = (cos x + sin x) / (cos x-sin x) - (cos x-sin x) / (cos x + sin x)

Prove that: (i) sin 3x+"sin" 2x-"sin" x = 4 sin x cos((x)/(2))cos((3x)/(2)) (ii) ("sin" 3x+"sin" x)"sin" x+(cos 3x-cos x)cos x=0.

Prove that (1 + sin x-cos x) / (1 + sin x + cos x) + (1 + sin x + cos x) / (1 + sin x-cos x) = 2cos ecx

Prove that : (cos 4x sin 3x - cos 2x sin x)/(sin 4x .sin x + cos 6x .cos x) = tan 2x

The total number of solution of sin^(4)x+cos^(4) x= sin x cos x in [0, 2pi]

If f(x) = (cos x + i sin x)(cos 3x + i sin 3x) ….(cos (2n - 1)x + i(sin(2n - 1)x) , then f^(11)(x) is