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$Let f (x) = \int e^{x} (x - 1) (x - 2) d x, then f decreases in the inverval$

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Correct option is C

f(x)=∫ex(x−1)(x−2)dx f'x=ex(x−1)(x−2) <0⇒x∈1,2since f(x) is decreasing function ⇒f'(x)<0

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Let f(x)=∫ex(x−1)(x−2)dx , then f decreases in the inverval

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$Let f (x) = \int e^{x} (x - 1) (x - 2) d x, then f decreases in the inverval$