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Questions  

The number of integral values of x  satisfying x2+10x16<x2 is 

a
0
b
1
c
2
d
3

detailed solution

Correct option is D

−x2+10x−160⇒ x2−7x+10>0⇒x>5 or x<2---(2) From (1) and (2), 5

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