Question

In how many ways can a number be expressed as a sum of 2 numbers

Answer 1

➡HERE IS YOUR ANSWER⬇

For Natural numbers, the number of ways varry.

Examples :

(We are not taking sums of unity and same numbers.)

3 = 1 + 2

4 = 2 + 2 = 1 + 3

5 = 2 + 3 = 4 + 1

6 = 2 + 4 = 5 + 1

7 = 1 + 6 = 2 + 5 = 3 + 4

. . .

In this way, you can arrage the sums.

⬆HOPE THIS HELPS YOU⬅