Write the first five terms of each sequence 1.a(1) = 7, a(n) = a(n-1) - 3 for n > 2.
2.b(1) = 2,b(n) = 2 - b(n - 1) - 1 for n 2 2.
2. c(1) = 3,c(n) = 10 c(n = 1) for n 2 2.
2.d(1) = 1, d(n) = n. d(n-1) for n > 2.