প্রশ্নঃ
x/y এর সাথে কত যোগ করলে যোগফল 2y/x হবে?
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ক.
(x2 - y2)/xy
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খ.
(x2 - 2y2)/xy
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গ.
(x2 + 2y2)/xy
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ঘ.
(2y2 - x2)/xy
উত্তরঃ ঘ
 (x2 - y2)/xy খ) (x2 - 2y2)/xy গ) (x2 + 2y2)/xy ঘ) (2y2 - x2)/xy উত্তর: ঘ) (2y2 - x2)/xy
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