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Given 3 + 7 + 11 + 15 + ... find S20

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Given 3 + 7 + 11 + 15 + ... find S20

asked Mar 22, 2022 203k views

3 votes

Given 3 + 7 + 11 + 15 + ... find S20

Mathematics
college

8.8k points

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1 Answer

4 votes

=4n - 1
Since the sequence is add 4 and 3-4 = -1

20 x 4n = 80-1 = 79

Prasath Govind answered Mar 27, 2022

by Prasath Govind

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