If p,q,r are in AP and are positive, the roots of the quadratic equation px^2+qx+r=0 are all real for

JEE Main Mathematics question

If are in AP and are positive, the roots of the quadratic equation are all real for

Answer: (A)

Real roots need ; with this is , i.e. . Dividing by and putting \frac$

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-021625