1.

The set of values of x satisfying (x^2-x-1)(x^2-x-7) < -5 is (a,b) U (c,d) then a+b+c+d is equal to(1)0(2)1(3)2(4)4

Answer» The set of values of x satisfying (x^2-x-1)(x^2-x-7) < -5 is (a,b) U (c,d) then a+b+c+d is equal to
(1)0
(2)1
(3)2
(4)4


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