Activity 8.3.2. Consider the series While it is physically impossible to add an infinite collection of numbers, we can, of course, add any finite collection of them. In what follows, we investigate how understanding how to find the nth partial sum (that is, the sum of the first n terms) enables us to make sense of the infinite sum. a. Sum the first two numbers in this series. That is, find a numeric value for -WI “WI “WI ~WI •WI 1612 - 3 k=1 5 b. Next, add the first three numbers in the series. c. Continue adding terms in this series to complete the list below. Carry each sum to at least 8 decimal places. 1 k² k² 1 k² || || || ∞ = k² 1 2 Σ 1 k² ~WI ¬WI •W •WI =WI - -2 -2 -2 -2 || || 2 8 6 1 k=1 10 k² k=1 k² || ||

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Activity 8.3.2. Consider the series
While it is physically impossible to add an infinite collection of numbers, we
can, of course, add any finite collection of them. In what follows, we investigate
how understanding how to find the nth partial sum (that is, the sum of the first
n terms) enables us to make sense of the infinite sum.
a. Sum the first two numbers in this series. That is, find a numeric value for
||
-WI “WI “WI “WI •WI
- - - - - 22
||
||
k=1
k²
b. Next, add the first three numbers in the series.
c. Continue adding terms in this series to complete the list below. Carry
each sum to at least 8 decimal places.
k²
k²
k²
k=
||
k²
1
2
1
k²
2
k=1
6
k=1
10
k=1
k²
||
1611612
||
k²
||
k²
||
||
Transcribed Image Text:Activity 8.3.2. Consider the series While it is physically impossible to add an infinite collection of numbers, we can, of course, add any finite collection of them. In what follows, we investigate how understanding how to find the nth partial sum (that is, the sum of the first n terms) enables us to make sense of the infinite sum. a. Sum the first two numbers in this series. That is, find a numeric value for || -WI “WI “WI “WI •WI - - - - - 22 || || k=1 k² b. Next, add the first three numbers in the series. c. Continue adding terms in this series to complete the list below. Carry each sum to at least 8 decimal places. k² k² k² k= || k² 1 2 1 k² 2 k=1 6 k=1 10 k=1 k² || 1611612 || k² || k² || ||
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