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Which expression is equivalent to
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Which expression is equivalent to

Which expression is equivalent to-example-1
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User Tadatuta
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1 Answer

7 votes

Answer:

The second expression

Explanation:


\sum_(n=3)^(20){n(n+1)}=\sum_(n=3)^(20){(n^2+n)}=\sum_(n=3)^(20)n^2+\sum_(n=3)^(20)n

You can split up sums.

User Clint Clinton
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