1.

If the l x+ my=1 is a normal to the hyperbola (x^(2))/(a^(2))-(y^(2))/(b^(2))=1, then shown that (a^(2))/(l^(2))-(b^(2))/(m^(2))=(a^(2)+b^(2))^(2)

Answer»

`a^(2)-B^(2)`
`a^(2)+b^(2)`
`(a^(2)-b^(2))`
`(a^(2)-b^(2))^(2)`

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