# Arithmetic sequences?

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#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?
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5 years ago
#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.
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#3
Umm could you elaborate further?
(Original post by morgan8002)
A series is the sum of a sequence.
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5 years ago
#4
(Original post by Hamoody96)
Umm could you elaborate further?
If a sequence is , the corresponding series is .
1
#5
Great!! That clears it. Thanks a bunch..
(Original post by morgan8002)
If a sequence is , the corresponding series is .
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5 years ago
#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?
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#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?
0
5 years ago
#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)
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#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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