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MakcuM [25]
2 years ago
5

An arithmetic sequence is given by the formula Ln= 42+11n.

Mathematics
1 answer:
Nadusha1986 [10]2 years ago
7 0
First term = 42 + 11 x 1 = 53
Last term = 42 + 11 x 2000 = 22042
Sum of 2000 terms = (2000/2)(53 + 22042) = 1000 x 22095 = 22 095 000
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