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Simplify 3!/4! Why are there !'s? The answer is .75 right?

Mathematics
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Nah,\[3!=3\times2\times1\]\[4!=4 \times3\times2\times 1\]
\[n! = n\times(n -1)\times(n-2)\cdots \times 1\]
Nope. If u ! after a number u call it as factorial. 3!=3*2*1 similarly 4!=4*3*2*1

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Other answers:

4! = 4x3x2 3!=3x2 24/6=4
Hmm
I still don't understand it. :c
Do you know that\[3!= 3\times2 \times 1\\ 4! = 4\times3 \times 2\times 1\]And so\[\dfrac{\color{#C00}{3!}}{4!} = \dfrac{\color{#C00}{3\times2\times1}}{4\times3 \times 2\times1}\]
6/24 ?
how do I simplify it more? ;w;
  • hba
Use a calculator. But it is pretty clear it is 1/4 or 0.25
The exclamation mark means factorial. In this case 3! Is (3 x 2 x 1) If It was let's say, 6! It would be (6 x 5 x 4 x 3 x 2 x 1) So in your question 3!/4 is 3x2x1 divided by 4 which is 6 divided by 4, which is 0.75 :) glad I could help.
  • hba
Its 3!/4! not 3!/4.
I still don't understand it. But thanks anyway.
Oh, then it's (3 x 2 x 1) / (4 x 3 x 2 x 1) Which is 6 / 24, meaning the answer is 0.25? :)
  • hba
Yes. Btw,What happened to your other account?
Me? I've never had another account ;o I just joined today :)
  • hba
Interesting.

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