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The curves x^2/a+y^2/b=1and x^2/a1+y^2/b...

The curves `x^2/a+y^2/b=1`and `x^2/a_1+y^2/b_1=1` will cut orthogonally if (a-b) =

A

`a_1+b_1`

B

`b_1-a_1`

C

`a_1-b_1`

D

none of these

Text Solution

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The correct Answer is:
C
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