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The condition that the slope of one the ...

The condition that the slope of one the lines of `a x^(2)+2 h x y+b y^(2)=0` is twice the other is

A

`h^(2)=a b`

B

`2 h^(2)=3 a b`

C

`8 h^(2)=9 a b`

D

`h^(2)=9 a b`

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The correct Answer is:
C
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