I guess you mean, to switch the letters around in different orders. You have 5 choices for the first letter. Whichever letter you choose, you have 4 choices for the second letter, 3 for the next, etc.; the final result is that you have 5 x 4 x 3 x 2 x 1 different options. This number (the product of all integers from 1 to 5) is written as 5! (five, followed by an exclamation), and read "5 factorial" or "factorial of five".
120 ways if ABCDE is considered different from EDCBA. In these two cases, the same people are next to one another , only the left and right re changed.
As many as you want.
Six ways.
If it's for an angle (triangles included) you can only write it 2 ways: XYZ and ZYX
120
you can write that answer a thousand million ways!
abcde abcde
120 ways if ABCDE is considered different from EDCBA. In these two cases, the same people are next to one another , only the left and right re changed.
We suppose you can write it as many ways as you want, but only one of them will be spelled correctly.
There can be only one combination, and that is abcde. In a combination the order of the elements does not matter, so dabec is the same as abcde.
As many as you want.
As many as you want.
Six ways.
3
As many as you want. An unlimited number of ways.
test
Abcde