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प्रश्न
`int_a^b f(x)dx` = ______.
विकल्प
`int_b^a f(x)dx`
`-int_a^b f(x)dx`
`-int_b^a f(x)dx`
`int_b^a f(x)dx`
उत्तर
`int_a^b f(x)dx` = `bb(underline(-int_b^a f(x)dx))`.
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