Use sigma notation to write the sum. 3 + 2 3 + 3 13 + 12
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We can see that the first term is 3, the second term is 2 times 3, the third term is 3 times 13, and the fourth term is 12. So, the pattern is that each term is the product of a constant and a number that increases by 1 each time. The constant is 3 for the first Show more…
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