In the expression of (x - y)3, the coefficient of y2 is:

গণিত Equation and Inequality 07 Oct, 2020

প্রশ্ন In the expression of (x - y)3, the coefficient of y2 is:

  • ক.
    1
  • খ.
    3
  • গ.
    3a
  • ঘ.
    -3a2

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Equation and Inequality