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Mathematics · 2023 · 3 marks

CBSE 2023 · Region 1 · Set 1 · Q31

(a) Evaluate: ∫_0^((π)/2) e^x sin x d x

(a)
Evaluate : \[\int_{0}^{\frac{\pi}{2}} \mathrm{e}^{\mathrm{x}} \sin \mathrm{x} d \mathrm{x} \]
OR
(b)
Find : \[\int \frac{1}{\cos (\mathrm{x}-\mathrm{a}) \cos (\mathrm{x}-\mathrm{b})} d \mathrm{x} \]
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