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cos 3 x cos 2 x...

cos 3 x cos 2 x

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Solve the following trigonometric equation : cos x + cos 3x + cos 2x = 0.

Integrate the following w.r.t. the respective variables: cos 3x cos 2x cos x

Integrate the following functions with respect to x . cos 3 x cos 2x

(cos 4x +cos 3x + cos 2x )/( sin 4x + sin 3x + sin 2x)= cot 3x

(cos 4x +cos 3x + cos 2x )/( sin 4x + sin 3x + sin 2x)= cot 3x

(cos 4x +cos 3x + cos 2x )/( sin 4x + sin 3x + sin 2x)= cot 3x

( cos 4x + cos 3x + cos 2x )/( sin 4x + sin 3x + sin 2x) = cot3x

Prove that (cos 4 x + cos 3 x + cos 2x)/(sin 2x + sin 3 x + sin 4 x ) = cot 2 x .

Find the general solutions of each of the following equations : (1) cos 3x =cos 2x (2) cos3x=sin2x .

If cos 3x + cos 2x = sin (3x//2)+sin(x//2), 0 le x le 2pi , then x =