If b_1b_2=2 (c_1+c_2 ), then the least one of the equation x^2+b_1x+c_1=0 and x^2+b_2x+c_2=0 has

JEE Main Mathematics question

If , then the least one of the equation and has

Answer: (A)

The discriminants are and . . So at least one

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Question ID VK-013769