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प्रश्न
Choose the correct alternative:
`int x^2 cos x "d"x` is
पर्याय
x2 sin x + 2x cos x – 2 sin x + c
x2 sin x – 2x cos x – 2 sin x + c
– x2 sin x + 2x cos x + 2 sin x + c
– x2 sin x – 2x cos x + 2 sin x + c
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उत्तर
x2 sin x + 2x cos x – 2 sin x + c
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