Math Problem Statement

Use the formula S​ =

n squaredn2

to find the sum of 1​ + 3​ + 5​ + ...​ +

​(Hint: To find​ n, add 1 to the last term and divide by​ 2.)

Question content area bottom

Part 1

1​ + 3​ + 5​ + ...​ + 461

​= enter your response here

Solution

To find the sum of the series 1+3+5++4611 + 3 + 5 + \dots + 461, we can use the formula for the sum of the first nn odd numbers:

S=n2S = n^2

Where nn is the number of terms in the series.

Step 1: Find nn

The hint suggests that to find nn, we need to add 1 to the last term (461) and divide by 2:

n=461+12=4622=231n = \frac{461 + 1}{2} = \frac{462}{2} = 231

So, n=231n = 231.

Step 2: Calculate the sum SS

Now, use the formula S=n2S = n^2 to find the sum:

S=2312S = 231^2

I'll calculate that next.The sum of the series 1+3+5++4611 + 3 + 5 + \dots + 461 is 5336153361.

Would you like more details or have any questions? Here are some related questions you might find helpful:

  1. How would you find the sum of even numbers in a similar series?
  2. What is the general formula for the sum of the first nn odd numbers, and why does it work?
  3. How can you verify that n=231n = 231 is correct for this problem?
  4. What is the sum of all odd numbers up to a different value, such as 501?
  5. How can this method be adapted for finding the sum of a series that skips terms?

Tip: Remember that the sum of the first nn odd numbers is always n2n^2, which makes finding such sums straightforward if you can determine nn.

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Math Problem Analysis

Mathematical Concepts

Series summation
Odd numbers

Formulas

Sum of the first n odd numbers: S = n^2

Theorems

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Suitable Grade Level

Grades 6-8