If m and n are positive integers, which of the following must be an even integer?

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Number System

প্রশ্নঃ If m and n are positive integers, which of the following must be an even integer?

  • ক. n(m - 1)
  • খ. (n - 1)m
  • গ. (m - 1)(n - 2)
  • ঘ. n(n - 1)(m - 1)

সঠিক উত্তরঃ

n(n - 1)(m - 1)
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Number System