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If two lines ax^(2)+2hxy+by^(2)=0 are e...

If two lines `ax^(2)+2hxy+by^(2)=0` are equally inclined with co-ordinate axes, then

A

`h=0` and `ablt0`

B

`a=b`

C

`a=+-b`

D

`ab gt 0, h=0`

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The correct Answer is:
B
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TARGET PUBLICATION-PAIR OF STRAIGHT LINES-CRITICAL THINKING
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