Same thing no difference  
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http://prntscr.com/2z8day 
The graph indicates that they are identical.
The graph indicates that they are identical.
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They are both the same. Just like sin^2(x) = (sin(x))^2          
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no difference at all. same thing. 
ln^2(10) ={ln10}^2 =1^2
      ln^2(10) ={ln10}^2 =1^2
