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Mathematics, 14.07.2019 08:00 omidbromand786

Find n for the sequence for which a1 = 30, d = -4 and sn= -210. a. -21 b. 21 c. -10 d. 10

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Find n for the sequence for which a1 = 30, d = -4 and sn= -210. a. -21 b. 21 c. -10 d. 10...

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