in each of the following APs the 1st, 2nd and last terms are given. find i. the common difference. ii. the number of terms in each sequence. a.1,5,...,69. b.80,83,...,152. c.98,91,...,0. d.2.3,3.4,...,21. e.-6,-2 1/2,...,71.?
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Asked by daa on 15th January, 2020
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