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.
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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?