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If slope of one of the lines ax^(2)+2hxy...

If slope of one of the lines `ax^(2)+2hxy+by^(2)=0` is twice that of the other, then `h^(2):ab=`

A

`7:8`

B

`8:7`

C

`8:9`

D

`9:8`

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The correct Answer is:
D
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