What we will learn in this lesson 11-4 is how to write and evaluate arthmetic series and to use summation notation.
Voc.
1 Series- the expression for sum of the terms of a sequences
2 Arthmetic Series-a series whose terms form aa arthmetic series
3 Limits- are the least and greastest intergral value of n
Sum of a Arthmetic Series
Sn = n/2(a1+an)
Limits
3
Σ (5n+1)
n=1
Examples:
Finite Series
2+11+20+29+38+47
Infinite Series
3+7+11+15+......
Sn = 5/2(5+13)
2.5(18)
Sn=45
3
Σ (5n+1)
n=1
(5(1)+1)+(5(2)+1)+(5(3)+1)
6+11+16
33
