Just want to verify my answers, if there are wrong answers then plz help me.
1) Give the first 4 terms of the following sequences
(indices begin at 0; you need not multiply everything out):
a) {An} = (-2)^n
b) {An} = 3
c) {An} = 7 + 4^n
d) {An} = 2^n + (-2)^n
My answers:
a) 1,-2,4,-8
b) 3
c) 1,11,23,71
d) 2,0,8,0