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The line lx + my + n = 0 is a normal to...

The line `lx + my + n = 0` is a normal to `(x^(2))/(a^(2)) + (y^(2))/(b^(2)) =1`, provided

A

`(a^(2))/(m^(2)) + (b^(2))/(l^(2)) =((a^(2) -b^(2))^(2))/(n^(2))`

B

`(a^(2))/(l^(2)) + (b^(2))/(m^(2)) =((a^(2) -b^(2))^(2))/(n^(2))`

C

`(a^(2))/(l^(2)) - (b^(2))/(m^(2)) =((a^(2) -b^(2))^(2))/(n^(2))`

D

None of these

Text Solution

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The correct Answer is:
B
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