1.

Reduce each of the following expressions to the sine and cosine of a single expression:(i) 3 sin x-cos x(ii) cos x − sin x(iii) 24 cos x + 7 sin x

Answer» Reduce each of the following expressions to the sine and cosine of a single expression:

(i) 3 sin x-cos x

(ii) cos x − sin x

(iii) 24 cos x + 7 sin x


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