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sc01010:
Please help!! What is the 21st term of the sequence with a1 = -7 and d = 3? -4 -21 53 -11
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justjm:
\(a_n = a_1 + (n-1)d\) \(a_1 = -7\) \(d=3\) \(n=21\) Just plug them in and find \(a_21\)
justjm:
\(a_{21}\) * I mean
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