The tangent at any point P on the ellips...

The tangent at any point P on the ellipse meets the tangents at the vertices A & `A^1` of the ellipse `x^2/a^2 + y^2/b^2 = 1` at L and M respectively. Then `AL.A^1M=`

`a + b`

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

`a^(2)`

`b^(2)`

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