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Is there a difference if we plug in any number numerically into: 

 

\(f(x) = \sqrt{x+1/x-1} \)

and 

\(g(x) = \sqrt{x+1}/\sqrt{x-1}\)

 

If so, give a number. 

Guest Mar 14, 2017

Best Answer 

 #2
avatar+7348 
+5


\(f(x) = \sqrt{x+1/x-1}\)      \(\large=\sqrt{x+\frac{1}{x}-1}\)

 

\(g(x) = \sqrt{x+1}/\sqrt{x-1}\)    \(\large=\sqrt{\frac{x+1}{x-1}}\)

 

laugh  !

asinus  Mar 14, 2017
 #1
avatar+7153 
+6
hectictar  Mar 14, 2017
 #2
avatar+7348 
+5
Best Answer


\(f(x) = \sqrt{x+1/x-1}\)      \(\large=\sqrt{x+\frac{1}{x}-1}\)

 

\(g(x) = \sqrt{x+1}/\sqrt{x-1}\)    \(\large=\sqrt{\frac{x+1}{x-1}}\)

 

laugh  !

asinus  Mar 14, 2017
 #3
avatar+7153 
+1

You're not wrong! People need to put their parenthesees if they mean them. Parenthesees are really good!

 

Except apparently the last 2 things aren't really equal in all cases. I wasn't aware of that until now. surprise

hectictar  Mar 14, 2017
 #4
avatar+92768 
0

Alan, I have put a question on the original post.  Could you take a look please :)

 

http://web2.0calc.com/questions/help-plz_10999

Melody  Mar 14, 2017

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