Question 1021048
a) {{{a[n] = -2n^2}}}, which can be verified directly for n = 1, 2, 3, 4, 5...

b) This is an arithmetic sequence, so the general nth formula is {{{a[n] = a[1]+(n-1)d}}}, with {{{a[1] = 96}}} and d = -2 
==> {{{a[n] = 96 -2(n-1) = 98-2n}}} for  n = 1, 2, 3, 4, 5...


c) This is a geometric sequence, where {{{a[n] = -58*10^(n-1)}}} for  n = 1, 2, 3, 4, 5...