Geometric Series Review

Consider the sequence:

(1, 2, 4, 8,...)

Find the 12th term.

Consider the sequence:

(2, 6, 18, 54,...)

Find the next term in the sequence.

Find the 14th term in this sequence:

(2, 4, 8, 16,...)

Evaluate the geometric series, if possible.

• 12/7

• 7/12

• 2

• Not Possible

Evaluate the geometric series, if possible.

• 5/2

• 2/5

• 4

• Not Possible

Answer explanation

Consider the sequence:

(-3, 12, -48, 192,...)

What would the next term be?

Find the 7th term of the sequence:

(1/3, 4/9, 16/27,...)

Round to the nearest hundredth.

Which recursive formula best describes the sequence
2, -6, 18, - 54... 

• a_n=a_n-1* -4, a₁ = 2

• a_n=a_n-1* - 8, a₁ =2

• a_n=a_n-1* 2, a₁ = -3

• a_n=a_n-1* -3, a₁ =2