Sequences and series

Find the 4th term for the sequence defined by a₁=9; a_n=a_n-1+8

• 35
• 17
• 41
• 33

The next two terms in the sequence 3, -6, 12, -24, .... are 

• 48 and 96
• -48 and -96
• -48 and 96
• 48 and -96

Determine the first 3 terms of the following sequence.

t₁= -3

t_n=t_n-1(3)

• -3, 9, 27

• -3, -9, -27

• -3, -6, -9

• -3, 6,9

Write the recursive formula for 6, 17, 28, 39, 50....

• a_n=a_n-1+11

  a₁=6

• a_n=a_n-1-4

  a₁=6

• a_n=a_n-1+9

  a₁=6

• a_n=a_n-1+6

  a₁=6

Find the next term:

81, 9, 1, 1/9, ...

• 1/81

• 1/27

• 1/18

• 18

Given the recursive formula below, find the first five terms.

a₁ = 3

a_n = a_n-1 + 2

• 3, 5, 7, 9, 11

• 5, 7, 9, 11, 13

• 2, 4, 6, 8, 10

• 3, 4, 5, 6, 7

Write the recursive formula for the following sequence?
6, 4, 2, 0, . . .

• a_n = -2n + 8
• a₁ =6, a_n = a_n - 1 - 2
• a₁ = 6, a_n = a_n-1 + 2
• a₁ = 6, a_n = a_n-1 - 2

The next term of the series 11,8,5,2 is...

Mathematical Equivalence

ON

Find the next three terms in the sequence.

10, 20, 40, 80, ...

• 160, 320, 640

• 90, 100, 110

• 40, 20, 10

• 81, 82, 83

Given the recursive formula: t₁=3; t_n=2t_n-1 what is the 4th term?

• 12

• 24

• 48

• 96