Consider the function, F(x)=∫x−1(t2−t)dt,x∈R. Find the inflection point.
A
x=12
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B
x=1
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C
x=0
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D
inflection point not exists
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Solution
The correct option is Ax=12 Given, F(x)=∫x−1(t2−t)dt Using Leibniz rule of differentiation, F′(x)=(x2−x)ddxx=(x2−x) ⇒F′′(x)=2x−1 Now for inflection point f′′(x)=0⇒x=12 Hence x=12 is inflection point of F.