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The gradient of one of the lines ax^2+2h...

The gradient of one of the lines `ax^2+2hxy+by^2=0` is twice that of the other, then

A

`h^2=ab`

B

`h=a+b`

C

`8h^2=9ab`

D

`ah^2=4ab`

Text Solution

Verified by Experts

The correct Answer is:
C
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