SOLUTION: Hello, I need help with certain question from my math hw. It's an online assignment, but none of said values shows. Maybe it's something I missed? Find the indicated values. (a

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Question 1145049: Hello, I need help with certain question from my math hw. It's an online assignment, but none of said values shows. Maybe it's something I missed?
Find the indicated values.
(a)
wPw − 2
(b)
wCw − 2
Found 2 solutions by richwmiller, ikleyn:
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
Yes. You missed giving us the whole problem and question.
Answer by ikleyn(52777)   (Show Source): You can put this solution on YOUR website!
.
(a)  wPw-2  is the standard designation for the number of PERMUTATIONS.


     The only way to interpret  wPw-2, which  I know, is  wP(w-2), which is


         wP(w-2) = w*(w-1)*(w-2)* . . . *3   (in all, there are (w-2) factors in the product).


     To calculate it, the value of w must be given.


     For example,  at w= 5  wP(w-2) is  5P3 = 5*4*3 = 60.




(b)  wCw-2  is the standard designation for the number of COMBINATIONS.


     The only way to interpret  wCw-2,  which I know, is  wC(w-2), which is


         wP(w-2) = 


     To calculate it, the value of w must be given.


     For example,  at  w= 5,  wC(w-2) is   =  =  = 10.


Generally speaking,  it is very strict and unexpected move from your side  (if to use the  "chess"  language) -
- to come to the forum and to ask about something, you don't know about what.

It is not the way and not the level to discuss something  "on substance".



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