Write the first five terms of each sequence. Determine whether each sequence is arithmetic, geometric, or neither. 1.a(1) = 7, a(n) = a(n-1) - 3 for n > 2.
2.6(1) = 2,6(n) = 2.b(n − 1) - 1 forn > 2.
3.c(1) = 3, c(n) = 10 .c(n-1) for n > 2.
4. d(1) = 1, d(n)=n. d(n - 1) forn > 2.​