Find anand a6 for the following arithmetic sequence.a1 = 42, d = -8
A. an = 42 + 8(n - 1), a6 = 82
B. an = 42 + 8n, a6 = 90
C. an = 42 - 8(n - 1), a6 = 2
D. an = 42 - 8n, a6 = -6
Answer: C
Mathematics
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