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If the curves ax^(2)+by^(2)=1 and a'x^(2...

If the curves `ax^(2)+by^(2)=1` and `a'x^(2)+b'y^(2)=1` are orthogonally then …………

A

`(1)/(a)-(1)/(b)=(1)/(a')-(1)/(b')`

B

`(1)/(a)+(1)/(b)=(1)/(a')+(1)/(b')`

C

`(1)/(b)-(1)/(b)=(1)/(a')+(1)/(b')`

D

`(1)/(a)+(1)/(b)=(1)/(a')-(1)/(b')`

Text Solution

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The correct Answer is:
B
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