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Find the eccentricity, the length of la...

Find the eccentricity, the length of latus rectum and the centre of ellipse
`9x^(2) + 16y^(2) - 54 x + 64 y + 1 = 0 `

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The correct Answer is:
`e=(sqrt(7))/(4),(9)/(2) ` and (3,-2)
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