The sum of first n terms of an arithmetic… | ClassNotes

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The sum of first n terms of an arithmetic… | ClassNotes

E

Editor

Sep 18, 2022

The sum of first n terms of an arithmetic series is

Difficulty: Easy

A:

a+(n-1)d

B:

\frac{n}{2}(a_{1}+a_{2})

C:

\frac{n}{2}[a+(n-1)d]

D:

n[2a+(n-1)d]

ID: 63273dbaca83163ac3a12b9d