Question

Anyone knw permutations??
How many permutations are possible with repeats for P(3,2)

Answer 1

Can anyone explain how to do this?

Answer 2

How you do that??

Answer 3

I have this one too, can u explain how i do it?
How many permuations are possible without repeats for P(5,4)

Answer 4

what does "without repeats" mean?
\[P(5,4)\] is a number

Answer 5

it is
\[5\times 4\times 3\times 2\]

Answer 6

and
\[P(3,2)\] is \(3\times 2\) not \(3^2\)

Answer 7

So its 120? I dont understand like with repeats and without?

Answer 8

What would p(5,4) be with repeats?

Answer 9

me neither unless it is something your math teacher made up

Answer 10

ok i think i get it

Answer 11

with repeats i guess means you can repeat an element, it is not used up when you place it

Answer 12

the notation for that is NOT \(P(5,4)\) but not matter, if you can repeat any of the 5 items four times, the answer is \(5^4\)

Answer 13

also for the first one, i was wrong, it would be \(3^2\)

Answer 14

Ok i got it, do you know combinations?
How many combinations are possible without repeats for C(6,2)



10

20

12

15

Answer 15

Do i just multiply 6x2?