2. Write the first five terms of each sequence. Determine whether each sequence is arithmetic, geometric, or neither.
a. a(l) = 7, a(n) = a(n − 1) – 3 for n > 2.
b.b(1) = 2,6(n) = 2 · b(n - 1) - 1 for n > 2.
C. c(1) = 3,c(n) = 10.c(n − 1) for n > 2.
d. d(1) = 1, d(n) = n.d(n − 1) for n > 2.

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