Question

What is the sum of the first five terms of the geometric series 3 − 6 + 12 − . . . ?

Hint: r ≠ 1, where a1 is the first term and r is the common ratio.
Hint: image attached

OPTIONS:

A) S5 = −136
B) S5 = −33
C) S5 = 12
D) S5 = 33

Answer 1

3-3*2+3*4-3*8+3*16 is tge answer