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10-04-2024
Mathematics

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Let X²/a² + y²/b²=1, a> b be an ellipse, whose eccentricity is 1/√2 and the length of the latus rectum is √14. Then the square of the eccentricity of X²/a² - y²/b²=1 is_____
O 3
O 7/2
O 3/2
O 5/2

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