Lesson 16: Solving Arithmetic Sequence

07/22/2016

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Lesson on evaluating and solving problems on arithmetic sequences. This is a sequence wherein there is a common difference between consecutive terms in the number sets. This is represented by the formula: An = A1 +(n+1)d

0:32 7, 11, 15, 19, ...
1:30 1, 4, 7, 10, ... 
2:12 Find the nth term of an arithmetic sequence whose common difference is 3 and whose first term is 12. 
3:40 Given the first 4 terms of the arithmetic sequence: {10, 8, 6, 4}, find the 23rd term of the sequence.


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