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If a, b, c are in H . P, then the equ...

If `a, b, c are in H . P, then the equation `a(b-c) x^(2)+b(c-a) x+c(a-b)=0`

A

has real and distinct roots

B

has equal roots

C

has no real roots

D

none of these

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The correct Answer is:
B
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  17. If (x^(2)-|x|-2)/(2|x|-x^(2)-2) ge 2, then

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