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IF the slope of one of the lines g...

IF the slope of one of the lines given by ` ax^(2) +2hxy + by ^(2) =0` is two times the other then

A

`8h^(2) = 9 ab `

B

`8h^(2) = 9ab ^(2) `

C

`8h = 9 ab`

D

`8h = 9 ab^(2)`

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The correct Answer is:
A
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