If a3 - b3 = 513 and a - b = 3, then ab =?

গণিত Statistics and Average 07 Oct, 2020

প্রশ্ন If a3 - b3 = 513 and a - b = 3, then ab =?

  • ক.
    54
  • খ.
    55
  • গ.
    45
  • ঘ.
    34

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54

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