Preference

প্রশ্নঃ

সমাধান করুনঃ ax - cy = 0        ay - cx = a2 - c2

  1. ক.

    x = a, y = c

  2. খ.

    x = c, y = a

  3. গ.

    x = - c, y = a

  4. ঘ.

    x = c, y = - a

উত্তরঃ
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