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प्रश्न
Determine the nature of the roots of the following quadratic equation :
x2 -4x + 4=0
उत्तर
x2 -4x + 4=0
b2 - 4ac
= (-4)2- 4(1)(4)
= 16- 16
=0
Since discriminant is 01 hence the roots are real and equal .
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