If the roots of equation x3 + bx2 + cx – 1 = 0 form an increasing G.P. then
(A) b + c = 0
(B) b ∈ (–∞, –3)
(C) one root is 1
(D) one root is smaller than 1 and one root is greater than 1
Correct option (A) (B) (C) (D)
Explanation:
