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

Use the formula S =n(n + 1)2 to find the sum of 1 + 2 + 3 + ... + 900.-example-1
User Aksonov
by
5.8k points

1 Answer

2 votes

Answer: A (405.450)

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

User Robert C Edwards
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5.3k points
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