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Question

Let x2(m3)x+m=0, mR be a quadratic equation. Then the set of value(s) of m for which roots are real and distinct is/are

A
(,1)
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B
(1,9)
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C
(9,)
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D
{1}
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Solution

The correct options are
A (,1)
C (9,)
x2(m3)x+m=0
Roots are real and distinct.
D>0(m3)24m>0m26m+94m>0m210m+9>0(m1)(m9)>0m(,1)(9,)

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