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What is the value of the series $\sum_{n=2}^{5}(3n-2)$?
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T1 = 3 x 2 -2 = 4

T2 = 3 x 3 -2 = 7

T3 = 3 x 4 -2 = 10

This is arithmetic series with d = 3 and a = 4

value or sum = 4[2x4 + (4-1)3]/2

= 34
by Diamond (43,702 points)

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