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Q.

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

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a

2, -3

b

-2, 2

c

-2, 1

d

0, -1

answer is A.

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Detailed Solution

1-p is root of x2+px+(1-p)=0   (1-p)(1-p+p+1)=0 1-p=0 p=1 put p=1 in x2+px+(1-p)=0  x2+x=0 x=0, x=-1)

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