cynikal987 cynikal987
  • 27-10-2020
  • Mathematics
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n is a positive integer. (i) Explain why n(n - 1) must be an even number.

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AARONDWAGI
AARONDWAGI AARONDWAGI
  • 27-10-2020

Answer:

Since the equation is n(n-1) where n is even, (n-1) will result to an odd number and when multiplied the answer with n( an even number), this will result to an EVEN NUMBER. Therefore, in any number that n can substitute, whether even or odd, the answer will always result to an even number

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