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MissyK

  • 3 years ago

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

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  1. ParthKohli
    • 3 years ago
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    Nah,\[3!=3\times2\times1\]\[4!=4 \times3\times2\times 1\]

  2. ParthKohli
    • 3 years ago
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    \[n! = n\times(n -1)\times(n-2)\cdots \times 1\]

  3. ajprincess
    • 3 years ago
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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

  4. zpupster
    • 3 years ago
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    4! = 4x3x2 3!=3x2 24/6=4

  5. ParthKohli
    • 3 years ago
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    Hmm

  6. MissyK
    • 3 years ago
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    I still don't understand it. :c

  7. ParthKohli
    • 3 years ago
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    Do you know that\[3!= 3\times2 \times 1\\ 4! = 4\times3 \times 2\times 1\]And so\[\dfrac{\color{#C00}{3!}}{4!} = \dfrac{\color{#C00}{3\times2\times1}}{4\times3 \times 2\times1}\]

  8. MissyK
    • 3 years ago
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    6/24 ?

  9. MissyK
    • 3 years ago
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    how do I simplify it more? ;w;

  10. hba
    • 3 years ago
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    Use a calculator. But it is pretty clear it is 1/4 or 0.25

  11. ryan.g.campbell.17
    • 3 years ago
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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.

  12. hba
    • 3 years ago
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    Its 3!/4! not 3!/4.

  13. MissyK
    • 3 years ago
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    I still don't understand it. But thanks anyway.

  14. ryan.g.campbell.17
    • 3 years ago
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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? :)

  15. hba
    • 3 years ago
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    Yes. Btw,What happened to your other account?

  16. ryan.g.campbell.17
    • 3 years ago
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    Me? I've never had another account ;o I just joined today :)

  17. hba
    • 3 years ago
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    Interesting.

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