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∞ ∫ 0 E − X D X . - Mathematics

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प्रश्न

\[\int\limits_0^\infty e^{- x} dx .\]
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उत्तर

\[\int_0^\infty e^{- x} d x\]

\[ = - \left[ e^{- x} \right]_0^\infty \]

\[ = - \left( 0 - 1 \right)\]

\[ = 0 + 1\]

\[ = 1\]

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Definite Integrals
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अध्याय 20: Definite Integrals - Very Short Answers [पृष्ठ ११५]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 20 Definite Integrals
Very Short Answers | Q 10 | पृष्ठ ११५

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