gurmies
Drover
Yes, for the weak. Now take a look at how many times it took you to get the right answer, compared to my first attempt. Sure it isn't exactly elegant, but it does the job for me.
Permutations and Combinations 3U Cambridge. (1 Viewer)
- Thread starter trailblazer
- Start date
K
khorne
Guest
1) it was a joke
2) It took me a sum total of one attempt...I posted the idea for it to help the OP, and then the solution, seeing as the OP didn't reply.
3) No working posted, how do I know?
4) It was part of the topic called "cases" in the Cambridge book..obviously they wanted you to use cases.
2) It took me a sum total of one attempt...I posted the idea for it to help the OP, and then the solution, seeing as the OP didn't reply.
3) No working posted, how do I know?
4) It was part of the topic called "cases" in the Cambridge book..obviously they wanted you to use cases.
gurmies
Drover
1) Already acknowledged in my reply
2) Well done
3) I didn't lie
4) tree diagrams also acknowledge cases.
<3
K
khorne
Guest
I less than 3 you too...
gurmies
Drover
less than 3 ftw =]I less than 3 you too...
K
khorne
Guest
gurmies
Drover
Yeah, I had a feeling that was wrong.
K
khorne
Guest
What was wrong?
light_~@~ngel
^^**light_~@~ngel **^^
hi
need IMMEDIATE help with this question:
find the number of ways in which the word EXTENSION can be arranged in a straight line so that no two vowels are next to each other.
thanx
need IMMEDIATE help with this question:
find the number of ways in which the word EXTENSION can be arranged in a straight line so that no two vowels are next to each other.
thanx
light_~@~ngel
^^**light_~@~ngel **^^
i dunno
question really confused me
cuz u can have:
CVCVCVCVC
CCVCVCVCV
CVCCVCVCV
CVCVCCVCV
etc
and ...sorta stuck from there
lol
question really confused me
cuz u can have:
CVCVCVCVC
CCVCVCVCV
CVCCVCVCV
CVCVCCVCV
etc
and ...sorta stuck from there
lol
K
khorne
Guest
Dw
Let me try again
c = 5
V= 4
so _C_C_C_C_C_
Ways of arranging C's is 5!/2!
Now, choose 4 places for the vowels which can be done 6C4 ways
Now arrange vowels which can be done, 4!/2! ways
sooo 5!/2!*6C4*4!/2! = 10800 ways
This is a more coherent method.
Let me try again
c = 5
V= 4
so _C_C_C_C_C_
Ways of arranging C's is 5!/2!
Now, choose 4 places for the vowels which can be done 6C4 ways
Now arrange vowels which can be done, 4!/2! ways
sooo 5!/2!*6C4*4!/2! = 10800 ways
This is a more coherent method.
gurmies
Drover
The initial answer you gave.
addikaye03
The A-Team
K
khorne
Guest
We've already finished that question Addikaye...
addikaye03
The A-Team
God damn it lol I didnt look....We've already finished that question Addikaye...
addikaye03
The A-Team
Btw, i went 2^5 x 3^3
K
khorne
Guest
That's hardly substantial working.
addikaye03
The A-Team
do you see how the working came to be though? If not i will explain
K
khorne
Guest
no, it looks like you just multiplied a bunch of numbers to get it...is it similar to the way I did it?