- #1

- 23

- 0

The answer is n(n-3)/2.

I don't know how to do that.

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter fork
- Start date

- #1

- 23

- 0

The answer is n(n-3)/2.

I don't know how to do that.

- #2

Tide

Science Advisor

Homework Helper

- 3,089

- 0

Set up a recursion for the number of diagonals in an n-gon: [itex]D_{n+1} = D_n + n - 2[/itex].

- #3

- 23

- 0

I don't understand how can I set up

[itex]D_{n+1} = D_n + n - 2[/itex].

[itex]D_{n+1} = D_n + n - 2[/itex].

- #4

HallsofIvy

Science Advisor

Homework Helper

- 41,847

- 967

Share:

- Replies
- 0

- Views
- 4K