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Applying the formula for multiple integr...

Applying the formula for multiple integration by parts, calculate the following integrals :
(a) `int (3x^(2) + x-2) sin^(2) (3x + 1) dx`,

Text Solution

Verified by Experts

The correct Answer is:
(a) `- (18x^(2) + 6x - 13)/( 72) sin (6x +2) - (6x + 2) - (6x + 1)/( 72) cos (6x +2 ) + (1)/(2) x^(3) + (1)/(4) x^(2) - x+ C;`
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