Use the approach in Gauss's Problem to find the following sums of arithmetic sequences.  A. 1+2+3+4+...+1001

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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Use the approach in Gauss's Problem to find the following sums of arithmetic sequences. 

A. 1+2+3+4+...+1001

 

### Arithmetic Series Sums Using Gauss's Approach

Gauss's approach to summing arithmetic series involves recognizing patterns in the sequences and applying a formula for efficiency. 

#### Problem 1.1.A-1
Use the approach in Gauss's **Problem** to find the following sums of arithmetic sequences:

#### Questions:

**a.** \(1 + 2 + 3 + 4 + \ldots + 1001\)  
**b.** \(1 + 3 + 5 + 7 + \ldots + 103\)  
**c.** \(8 + 17 + 26 + 35 + \ldots + 890\)  
**d.** \(293 + 290 + 287 + 284 + \ldots + 2\)  

#### Example Solution:

**a. The sum of the sequence is** \[ \boxed{} \]

### Instructions:
1. Enter your answer in the answer box and then click **Check Answer**.

### Assessment:

You have **3 parts** remaining to complete.

Utilize the concepts of arithmetic sums, identify common differences, first and last terms of the sequences, and apply the formula for the sum of an arithmetic series:

\[ S_n = \frac{n}{2} \times (a + l) \]

where:
- \( S_n \) is the sum of the arithmetic series,
- \( n \) is the number of terms,
- \( a \) is the first term,
- \( l \) is the last term.

You are encouraged to solve each part step-by-step and verify your results.

Good luck!
Transcribed Image Text:### Arithmetic Series Sums Using Gauss's Approach Gauss's approach to summing arithmetic series involves recognizing patterns in the sequences and applying a formula for efficiency. #### Problem 1.1.A-1 Use the approach in Gauss's **Problem** to find the following sums of arithmetic sequences: #### Questions: **a.** \(1 + 2 + 3 + 4 + \ldots + 1001\) **b.** \(1 + 3 + 5 + 7 + \ldots + 103\) **c.** \(8 + 17 + 26 + 35 + \ldots + 890\) **d.** \(293 + 290 + 287 + 284 + \ldots + 2\) #### Example Solution: **a. The sum of the sequence is** \[ \boxed{} \] ### Instructions: 1. Enter your answer in the answer box and then click **Check Answer**. ### Assessment: You have **3 parts** remaining to complete. Utilize the concepts of arithmetic sums, identify common differences, first and last terms of the sequences, and apply the formula for the sum of an arithmetic series: \[ S_n = \frac{n}{2} \times (a + l) \] where: - \( S_n \) is the sum of the arithmetic series, - \( n \) is the number of terms, - \( a \) is the first term, - \( l \) is the last term. You are encouraged to solve each part step-by-step and verify your results. Good luck!
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