+3 votes
in JEE by kratos

If the equation (x/(1 + x2)2 + a(x/(1 + x2) + 3 = 0 has exactly two real roots which are distinct, then the set of possible real values of a is

(A) (- 13/2, 0)

(B) ( -∞, - 13/2)

(C) (-13/2, 13/2)

(D) (13/2, ∞)

1 Answer

+1 vote
by kratos
 
Best answer

Correct option (B) (D)

Explanation:

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