Question 23

given the geometric sequence where a1 = 1 and the common ratio is 6, what is the domain for n?

a) all integers where n ≥ 1

b) all integers

c) all integers where n ≥ −1

d) all integers where n ≥ 0

question 24

find the sum of a finite geometric sequence from n = 1 to n = 5, using the expression −3(4)n − 1.

a) -1,023

b) 1,223

c) 1,023

d) −4,374