Question

Study Guide vocab help Algebra 2.

Answer 1

A. Arithmetic Sequence F. Geometric Sequence
B. Arithmetic Series G. Geometric Series
C. Converge H. Limits
D. Diverge I. Recursive Formula
E. Explicit Formula J. Term of a Sequence
Directions: Please write the letter of the word above that matches the definitions below
in the blank spaces provided.
_____ 1. Expresses the nth term of a sequence in terms of n.
_____ 2. A series does this if it gets closer and closer to a real number as n increases.
_____ 3. A series whose sum can be found by =
or =





.
_____ 4. A sequence in which the difference between successive terms is constant.
_____ 5. Each number in a sequence.
_____ 6. A series whose sum can be found by =



+
.
_____ 7. A sequence in which the ratio between successive terms is constant.
_____ 8. In summation notation using Σ, these are the least and greatest values of the
index of n.
_____ 9. A series does this if it does NOT get closer and closer to a real number as n
increases.
_____ 10. Defines the terms in a sequence by relating each term to the ones before it.

Answer 2

3 is \[An= a1r ^{n-1} or Sn= \frac{ a1-a1r ^{n} }{ 1-r }\]

Answer 3

6 is \[Sn = \frac{ n }{ 2 } (a1+an)\]

Answer 4

@phuong.tong

Answer 5

O_O :o

Answer 6

and D for what ?