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Question

9 x^{2} + 25 y^{2} = 225

উপবৃত্তের উৎকেন্দ্রিকতা এবং উপকেন্দ্র হবে-

e = \frac{4}{5}, (\pm 4, 0)

e = - \frac{4}{5}, (4, 0)

e = \frac{2}{5}, (\pm 2, 0)

e = \frac{4}{5}, (0, \pm 4)

কোনোটিই নয়

ANS : 1

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