1.

The roots of the quadratic equation ax2+x+b=0 are real for all values of x. If a, 1, b are in an arithmetic progression, where a,b∈R+, then which of the following can be the possible value of ab?

Answer»

The roots of the quadratic equation ax2+x+b=0 are real for all values of x. If a, 1, b are in an arithmetic progression, where a,bR+, then which of the following can be the possible value of ab?



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