If l,m are real and l m then the roots of the equation (l-m)x^2-5(l+m)x-2(l-m)=0 are

JEE Advanced Mathematics question

If are real and then the roots of the equation

(l--5(l+m)x-2(l-m)=0

are

Answer: (C)

It is a genuine quadratic since .

D=25(l++8(l->0 (as (l->0).

So the roots are real and uneq

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Question ID VK-107934