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(i) int x^(2) " cos x dx " " "(ii) i...

`(i) int x^(2) " cos x dx " " "(ii) int x^(2) e^(3x) " dx "`

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The correct Answer is:
`(i) (x^(2)-2) sin x+2x cos x +c" "(ii) (1)/(27) e^(3x) (9x^(2)- 6x+2)+c`
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