1Rimuru 1Rimuru
  • 19-01-2023
  • Mathematics
contestada

Can anyone please help me answer this question?
Show that the following statement is true for all natural numbers n
a. 1 + 2 + 3 + ⋯ + n = n(n + 1)/ 2
b. 1 + 4 + 7 + ⋯ . +(3n − 2) = n(3n - 1)/ 2

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