Asked by vivian
Write each series as a summation in sigma notation.
5+8+11+14
i=1
5+8+11+14
i=1
Answers
Answered by
Steve
note that the numbers grow by 3's. So, the sequence is 3k+ something.
3*1=3, but the first term is 5, so the terms are
3k+2
The sum is thus
4
∑ 3k+2
k=1
3*1=3, but the first term is 5, so the terms are
3k+2
The sum is thus
4
∑ 3k+2
k=1
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