Write Terms of a Geometric Sequence
-$$a _ { n } = 5 a _ { n - 1 } ; a _ { 1 } = 4$$
A) $4,20,100,500,2500$
B) $20,100,500,2500,12,500$
C) $5,20,100,500,2500$
D) $4,9,14,19,24$

Question

Quizplus · Accepted Answer

The given sequence is a geometric sequence with the first term $a_1 = 4$ and a common ratio of $5$. Each term is obtained by multiplying the previous term by $5$. The sequence is $4, 4*5=20, 20*5=100, 100*5=500, 500*5=2500$.

Write Terms of a Geometric Sequence - an=5an−1;a1=4a _ { n } = 5 a _ { n - 1 } ; a _ { 1 } = 4an​=5an−1​;a1​=4

Write Terms of a Geometric Sequence
- $a _ { n } = 5 a _ { n - 1 } ; a _ { 1 } = 4$