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The pair of lines joining the origin to the points of intersection of the curves
`ax^2+2hxy+by^2+2gx=0` and
`a'x^2+2h'xy+b'y^2+2g'x=0`
will be at right angles to one another , if

A

g(a'+b')=g'(a+b)

B

g(a+b)=g'(a'+b')

C

gg'=(a+b)(a'+b')

D

none of the above

Text Solution

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The correct Answer is:
A
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