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Slope of normal to the ellipse at a poin...

Slope of normal to the ellipse at a point P is `3/4` and eccentricity of ellipse is `1/3` . If this normal makes acute angle `beta` with its focal chord through P, then `sin beta` is (A) `1/4` (B) `3/10` (C) `1/5` (D) `1/2`

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