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i dont understand how 5!/2!3! is 10??

Guest Feb 1, 2015

Best Answer 

 #2
avatar+91448 
+5

$$\frac{5!}{2!3!}\\\\
=\frac{1*2*3*4*5}{1*2\;*\;1*2*3}\\\\
=\frac{2*3*4*5}{2\;*\;2*3}\\\\
=\frac{\not{2}*\not{3}*4*5}{2\;*\;\not{2}*\not{3}}\\\\
=\frac{\not{4}^2*5}{\not{2}}\\\\
=2*5\\\\
=10$$

Melody  Feb 1, 2015
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2+0 Answers

 #1
avatar+80983 
+5

5!/2!3 =

120/(2(6)) =

120/12 =

10

 

CPhill  Feb 1, 2015
 #2
avatar+91448 
+5
Best Answer

$$\frac{5!}{2!3!}\\\\
=\frac{1*2*3*4*5}{1*2\;*\;1*2*3}\\\\
=\frac{2*3*4*5}{2\;*\;2*3}\\\\
=\frac{\not{2}*\not{3}*4*5}{2\;*\;\not{2}*\not{3}}\\\\
=\frac{\not{4}^2*5}{\not{2}}\\\\
=2*5\\\\
=10$$

Melody  Feb 1, 2015

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