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Mathematics, 02.12.2020 18:30 0318929

A1 is the first term of a sequence, r is a common ratio, and d is a common difference. Write the first five terms. 12. a1 = 2, r = -2
13. a1 = 3, d = 7
14. a1 = -100, r = 1/5
15. a1 = 19, d = -4

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