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प्रश्न
Find the values of k for which the given quadratic equation has real and distinct roots:
`kx^2+6x+1=0`
उत्तर
The given equation is` kx^2+6x+1=0`
∴` D=6^2-4xxkxx1=36-4k`
The given equation has real and distinct roots if D > 0.
∴` 36-4k>0`
⇒`4k<36`
⇒`k<9`
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