Question: 25.- [sin x . cos( 1 - 2x )] = ... .. a. cos x cos (1 - 2x ) + 2 sin x sin

 25.- [sin x . cos( 1 - 2x )] = ...

25.- [sin x . cos( 1 - 2x )] = ... .. a. cos x cos (1 - 2x ) + 2 sin x sin (1 - 2x ) Jer. cos x cos (1 - 2x ) - 2 sin x sin (1 - 2x ) c. sin x sin (1 - 2x ) - 2 cos x cos (1 - 2x ) d.2 sin x cos x + sin (1 - 2x ) . cos (1 - 2x ) e. sin x cos x +2 sin (1 - 2x ) . cos (1 - 2x ) 26. Turunan dari g'(x) = cos3x adalah g'(x) =... a. cos x sin x c. - 3 cos x sin x e. 3 cos*x sin x b. 3 cos x sin x 3 sin'x sinx

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