The set of values of x for which the inequalities x2−3x−10<0 and 10x−x2−16>0 hold simultaneously, is
A
(−2,5)
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B
(2,8)
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C
(−2,8)
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D
(2,5)
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Solution
The correct option is B(2,5) We have, x2−3x−10<0 ⇒(x−5)(x+2)<0 ⇒−2<x<5 Also, 10x−x2−16>0 x2−10x+16<0 (x−2)(x−8)<0 Hence, 2<x<8 The common set for x is (2,5).