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Select the Correct Alternative and Write It. What is the Sum of First N Natural Numbers ? - Algebra

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MCQ

Select the correct alternative and write it. 

What is the sum of first n natural numbers ? 

 

Options

  • (A)` (n(n-1))/2` 

  • (B)`n/2(n-2)`

  • (c)` n(n+1)/2` 

  • (D) `(n(n+2))/2`

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Solution

(c) `(n(n+1))/2`

Concept: General Term of an Arithmetic Progression
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