Geometric Sequence Review

Front

What does a₁ represent?

Back

First term

Front

Find the common ratio for the geometric sequence: 2, 4, 8, 16.

Back

2

Front

What does r represent in a geometric sequence?

Back

Common ratio

Front

Find the first four terms of the sequence given the rule: aₙ = 3(2)^(n-1).

Back

3, 6, 12, 24

Front

What is the formula for the nth term of a geometric sequence?

Back

aₙ = a₁ * r^(n-1)

Front

If a₀ = 5 and r = 3, what is a₁?

Back

15

Front

What is the sum of the first n terms of a geometric sequence?

Back

Sₙ = a₁ * (1 - rⁿ) / (1 - r) for r ≠ 1

Front

If the first term is 4 and the common ratio is 1/2, what are the first four terms?

Back

4, 2, 1, 0.5

Front

What is the common ratio if a₁ = 10 and a₂ = 20?

Back

2

Front

If a₀ = 1 and r = 4, what is a₃?

Back

64