Brightstorm is like having a personal tutor for every subject
See what all the buzz is about
Check it outArithmetic Sequences  Problem 19 83 views
In order to find any missing terms in an arithmetic sequence, you need to know the common difference, d, that is being added to get from one term to the next in the list. In order to find this, count how many missing terms there are between your two given values, and use those to solve for d. (Lower given number plus so many counted d's equals higher given number.) From there, you can solve for any term number in the list, including the fist, using the arithmetic explicit formula: nth term = first term plus d(n  1).
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Concept (1)
Sample Problems (19)
Need help with a problem?
Watch expert teachers solve similar problems.

Arithmetic Sequences
Problem 1 9,101 viewsGiven 11, 7, 3...
Find a_{301}. 
Arithmetic Sequences
Problem 2 6,930 viewsGiven a_{20} = 101 and a_{21} = 104,
find the general term, a_{n}. 
Arithmetic Sequences
Problem 3 6,381 viewsGiven a_{11} = 52, a_{19} = 92,
find a_{1001} 
Arithmetic Sequences
Problem 4 5,896 viewsFind the number of terms:
7 , 13 , 19 ... 85 3 3 3 3 
Arithmetic Sequences
Problem 5 335 views 
Arithmetic Sequences
Problem 6 312 views 
Arithmetic Sequences
Problem 7 283 views 
Arithmetic Sequences
Problem 8 331 views 
Arithmetic Sequences
Problem 9 83 views 
Arithmetic Sequences
Problem 10 87 views 
Arithmetic Sequences
Problem 11 80 views 
Arithmetic Sequences
Problem 12 86 views 
Arithmetic Sequences
Problem 13 77 views 
Arithmetic Sequences
Problem 14 81 views 
Arithmetic Sequences
Problem 15 81 views 
Arithmetic Sequences
Problem 16 76 views 
Arithmetic Sequences
Problem 17 84 views 
Arithmetic Sequences
Problem 18 79 views 
Arithmetic Sequences
Problem 19 82 views
Comments (0)
Please Sign in or Sign up to add your comment.
·
Delete