1.

Express each of the following as an algebraic sum of sines or cosines : (i) 2 sin 3x cos 2x (ii) 2 cos 4x sin 2x (iii) 2 cos 6x cos 4x (iv) 2 sin 3x sin 5x

Answer»

Express each of the following as an algebraic sum of sines or cosines :

(i) 2 sin 3x cos 2x

(ii) 2 cos 4x sin 2x

(iii) 2 cos 6x cos 4x

(iv) 2 sin 3x sin 5x



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