A) Complex
B) Real and distinct
C) Real and equal
D) None of these
Correct Answer: B
Solution :
Given equation is \[(l-m){{x}^{2}}-5(l+m)x-2(l-m)=0\] Its discriminant \[D=25\]\[{{(l+m)}^{2}}+8\]\[{{(l-m)}^{2}}\] which is positive, since \[l,m,n\] are real and \[l\ne m\]. Hence roots are real and distinct.You need to login to perform this action.
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