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If slopes of lines ax^(2)+2hxy+by^(2)=0 ...

If slopes of lines `ax^(2)+2hxy+by^(2)=0` differ by k then `(h^(2)-ab):b^(2)=`

A

`4k^(2)`

B

`4:k^(2)`

C

`k^(2):4`

D

`k^(2)+4`

Text Solution

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The correct Answer is:
C
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