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प्रश्न
Determine the nature of the roots of the following quadratic equation :
x2 -5x+ 7= 0
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उत्तर
x2 -5x+ 7= 0
b2 - 4ac
= (-5)2 - 4(1)(7)
= 25 - 28
= -3
Since discriminant is negative, hence the roots are imaginary.
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