MissyK
Simplify 3!/4! Why are there !'s? The answer is .75 right?
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ParthKohli
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Nah,\[3!=3\times2\times1\]\[4!=4 \times3\times2\times 1\]
ParthKohli
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\[n! = n\times(n -1)\times(n-2)\cdots \times 1\]
ajprincess
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Nope. If u ! after a number u call it as factorial.
3!=3*2*1
similarly
4!=4*3*2*1
zpupster
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4! = 4x3x2
3!=3x2
24/6=4
ParthKohli
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Hmm
MissyK
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I still don't understand it. :c
ParthKohli
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Do you know that\[3!= 3\times2 \times 1\\ 4! = 4\times3 \times 2\times 1\]And so\[\dfrac{\color{#C00}{3!}}{4!} = \dfrac{\color{#C00}{3\times2\times1}}{4\times3 \times 2\times1}\]
MissyK
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6/24 ?
MissyK
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how do I simplify it more? ;w;
hba
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Use a calculator.
But it is pretty clear it is 1/4 or 0.25
ryan.g.campbell.17
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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
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Its 3!/4! not 3!/4.
MissyK
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I still don't understand it. But thanks anyway.
ryan.g.campbell.17
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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
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Yes.
Btw,What happened to your other account?
ryan.g.campbell.17
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Me? I've never had another account ;o I just joined today :)
hba
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Interesting.