Sequences and Series (Arithmetic and Geometric)

Which sequence is arithmetic?

• 4, 8, 16, 32, 64, ...
• 4, 6, 10, 12, 16, ...
• 4, 1, -2, -5, -8, ...
• 4, 2, 1, 1/2, 1/4, ...

A convergent sequence is.......

• A vertical asymptote
• A set of numbers that don't approach a specific value
• A set of numbers that stay constant
• A set of numbers that approach a specific value

A divergent sequence is.......

• A vertical asymptote
• A set of numbers that don't approach a specific value
• A set of numbers that stay constant
• A set of numbers that approach a specific value

Find the 22nd term of the following sequence:
5, 8, 11, ...

• 14
• 68
• 63
• 71

Find the missing terms of the arithmetic sequence:
145, ___, ___, ___, 205

• 160, 175, 190
• 165, 185, 195
• 155, 165, 175
• 190, 175, 160

What is the twelfth term in the sequence 3, -6, 12, . . . ?

• -2,048
• 6,144
• -6,144
• -531,441

Find S_n for the given series:
a₁=22
d=-8
n=21

• 1911
• -1449
• -2436
• -1218

What is the sum of the first 10 terms for the following geometric series:
2-6+18-54+...

• 59048
• -29524
• 524288
• 3069

Find the sum for the following series. 

• 44
• -162
• -682
• 324

Which recursive formula best describes the following sequence:
3, 8, 13, 18, 23...

• a_n = (3)^n-1 ; a₁ =5
• a_n = (5)^n-1 ; a₁ =3
• a_n = a_n-1+3 ; a₁ =5
• a_n = a_n-1+5 ; a₁ =3