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Question

If (1 - p) is a root of quadratic equation x2+px+(1p)=0 then its roots are

A
-1, 2
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B
-1, 1
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C
0, -1
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D
0, 1
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Solution

The correct option is C 0, -1
Let the second root be α,
Then α+(1p)=pα=1
Also α.(1p)=1p(α1)(1p)=0p=1[α=1]
Roots are α=1 and p1=0

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