afreeman13 afreeman13

27-09-2021
Mathematics

contestada

Use the formula S
=n(n + 1)2
to find the sum of 1 + 2 + 3 + ... +
900.

Use the formula S nn 12 to find the sum of 1 2 3 900 class=

Respuesta :

nguyenvietnam nguyenvietnam

27-09-2021

Answer: A (405.450)

Step-by-step explanation: S = 900 (900 + 1) :2

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