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The first term of a linear sequence is 3 and the 8 term is 31. Find the common differenceAsked by arithmetic progression
the first term of a linear sequence is 3 and the 8th term is 31. Find the common differences
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Answered by
oobleck
a_8 = a_1 + 7d
so, 7d = 31-3 = 28
d = 4
so, 7d = 31-3 = 28
d = 4