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If P is any point on ellipse with foci ...

If `P` is any point on ellipse with foci `S_1 & S_2` and eccentricity is `1/2` such that `/_PS_1S_2=alpha,/_PS_2S_1=beta,/_S_1PS_2=gamma` , then `cot(alpha/2), cot(gamma/2), cot(beta/2)` are in

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
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