Question

The problem number 1 is the question. See attached photo.

Answer 1

`\sum\limits^5_(n =1) n = 15`

Explanation:

Given

`\sum\limits^5_(n =1) n`

Required

Compute

This implies that we add n whose value ranges from 1 to 5.

So:

`Sum = 1 + 2 + 3 + 4 + 5`

`Sum =15`

Hence:

`\sum\limits^5_(n =1) n = 15`