The sum of the whole numbers from 1 to 680 is 231540.
What is the sum of the whole numbers from 1 to 680?
Arithmetic sequence is a list of numbers where each number is equal to the previous number, plus a constant called the common difference.
The formula for sum of first n numbers can be expressed as;
Sₙ = (n/2)( a₁ + aₙ )
Where n is the number of terms, a₁ is the first term and aₙ is the nth term.
Given that,
The numbers are whole numbers from 1 to 680
- Number of terms n = 680
- First term a₁ = 1
- 680th term a₆₈₀ = 680
- Sum S₆₈₀ = ?
Plug the given values into the equation above.
Sₙ = (n/2)( a₁ + aₙ )
S₆₈₀ = (680/2)( 1 + 680 )
S₆₈₀ = 340( 681 )
S₆₈₀ = 231540
Therefore, the sum of the whole numbers from 1 to 680 is 231540.
Learn more about arithmetic sequence here: https://brainly.com/question/15412619
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