Interval containing the value of the integral ∫51(x−1)(x−2)(x−3)(x−4)(x−5)dx
A
(−π2,π2)
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B
(0,π2)
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C
(−π2,0)
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D
(π8,5π4)
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Solution
The correct option is A(−π2,π2) I=∫51(x−1)(x−2)(x−3)(x−4)(x−5)dx→(i)∫baf(x)dx=∫aaf(a+b−x)dxI=∫51(6−x−1)(6−x−2)(6−x−3)(6−x−4)I=∫51(x−5)(x−4)(x−3)(x−2)(x−1)dx→(ii)Equation(i)+(ii)2I=0I=0