It depends whether or not the first term is considered to be term zero or term one.
1, 1/2, 1/4, 1/8, 1/16,.....
in the sequence the first term is one and each term after the first is half the proceeding term. which of following answers represents the nth term of this sequence, where n is positive?
its 1/2^n-1 because 1/2^3= 1/8 1/2^2=1/2 ------- but my coworker said its 1/2^n
Can someone explain to me if i am doing this correctly.