Question

A. Find the sum of the terms in the arithmetic sequence for the number of terms indicated.
1. 4 + 1 + -2 4 -5 + ... 40 terms
2. 6+12+18 +24+.... 15 terms
3. 10+ 7 + 4 + 1 + ... 35 terms
4 13 + 12 +11+ ... 50 terms
5. 2 +9+16 +23+ ... 25 terms​

Answer 1

Answer:

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