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If l ,m ,n are real and l!=m , then the ...

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

a) real and equal

b) Complex

c) real and unequal

d) none of these

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CENGAGE PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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