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# Arithmetic sequences? watch

1. I was pretty confused while studying the chapter Sequences and Series. Basically, what is an arithmetic sequence and what is an arithmetic series? Are they both the same thing?
2. (Original post by Hamoody96)
I was pretty confused while studying the chapter Sequences and Series. Basically, what is an arithmetic sequence and what is an arithmetic series? Are they both the same thing?
A series is the sum of a sequence.
3. Umm could you elaborate further?
(Original post by morgan8002)
A series is the sum of a sequence.
4. (Original post by Hamoody96)
Umm could you elaborate further?
If a sequence is , the corresponding series is .
5. Great!! That clears it. Thanks a bunch..
(Original post by morgan8002)
If a sequence is , the corresponding series is .
6. An arithmetic sequence is a sequence (1,2,3,4,5...) that goes up in a constant. Basically the difference between each term is the same, such as +2, (1,3,5,7,9) is an arithmetic sequence because we go up in 2 every time. Do you understand the Sn stuff?
7. Sn as in the formula right?
(Original post by Honeystone)
An arithmetic sequence is a sequence (1,2,3,4,5...) that goes up in a constant. Basically the difference between each term is the same, such as +2, (1,3,5,7,9) is an arithmetic sequence because we go up in 2 every time. Do you understand the Sn stuff?
8. (Original post by Hamoody96)
Sn as in the formula right?
Yeah knowing the formula, but also being able to use it to work out the sum of a certain number of terms (n)
9. Yepp I'm good with that. Thanks a lot
(Original post by Honeystone)
Yeah knowing the formula, but also being able to use it to work out the sum of a certain number of terms (n)

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