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Introduction to hyperbola - class-XI
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Consider
the set of hyperbola $xy = {\text{ }}K,{\text{ K}} \in {\text{R,}}$ let ${e _1}$ be eccentricity
when $K = \sqrt {2017} $ and ${e _2}$ be the
eccentricity when $K = \sqrt {2018} $ , then ${e _1} = {e _2}$ is equal to
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A
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