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Show the condition that the curves a x^2...

Show the condition that the curves `a x^2+b y^2=1` and `a^(prime)x^2+b^(prime)y^2=1` should intersect orthogonally is `1/a-1/b=1/a^(prime)-a/b^(prime)dot`

A

`(a - a_(1))/(aa_(1)) = (b-b_(1))/(b b_(1))`

B

`(a + a_(1))/(aa_(1)) = (b + b_(1))/(b b_(1))`

C

`(a - a_(1))/(a + a_(1)) = (b - b_(1))/(b + b_(1))`

D

None of these

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A
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DISHA PUBLICATION-APPLICATION OF DERIVATIVES -EXERCISE - 1
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