David S.

asked • 01/10/20

Help on calculus please: Area approximation

Which of the following sums does not equal the others?

Options:

  1. the sum from i equals 2 to 5 of the quantity i plus 1
  2. the sum from i equals 1 to 3 of the quantity i plus 2
  3. the sum from i equals 1 to 3 of the quantity 2 times i
  4. the sum from i equals 2 to 4 of the quantity 2 times i minus 2


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