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Rene
Mathematics
29 May, 20:53
Find the sum of the first 50 terms In An = 3n + 2
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Willow Hudson
29 May, 21:03
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Hello:
this arithmetic sequence the first term is : A1 = 3 (1) + 2=5
and common difference is r = 3
the sum of the first 50 terms is : S50 = 50/2 (A1 + A50)
A50 = 3 (50) + 2 = 152
S50 = 50/2 (5 + 152) = 3925
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