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Derivative of (x^2-36)/x

Function f() - derivative -N order at the point
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The solution

You have entered [src]
 2     
x  - 36
-------
   x   
x236x\frac{x^{2} - 36}{x}
(x^2 - 36)/x
Detail solution
  1. Apply the quotient rule, which is:

    ddxf(x)g(x)=f(x)ddxg(x)+g(x)ddxf(x)g2(x)\frac{d}{d x} \frac{f{\left(x \right)}}{g{\left(x \right)}} = \frac{- f{\left(x \right)} \frac{d}{d x} g{\left(x \right)} + g{\left(x \right)} \frac{d}{d x} f{\left(x \right)}}{g^{2}{\left(x \right)}}

    f(x)=x236f{\left(x \right)} = x^{2} - 36 and g(x)=xg{\left(x \right)} = x.

    To find ddxf(x)\frac{d}{d x} f{\left(x \right)}:

    1. Differentiate x236x^{2} - 36 term by term:

      1. The derivative of the constant 36-36 is zero.

      2. Apply the power rule: x2x^{2} goes to 2x2 x

      The result is: 2x2 x

    To find ddxg(x)\frac{d}{d x} g{\left(x \right)}:

    1. Apply the power rule: xx goes to 11

    Now plug in to the quotient rule:

    x2+36x2\frac{x^{2} + 36}{x^{2}}

  2. Now simplify:

    1+36x21 + \frac{36}{x^{2}}


The answer is:

1+36x21 + \frac{36}{x^{2}}

The graph
02468-8-6-4-2-1010-50005000
The first derivative [src]
     2     
    x  - 36
2 - -------
        2  
       x   
2x236x22 - \frac{x^{2} - 36}{x^{2}}
The second derivative [src]
  /            2\
  |     -36 + x |
2*|-1 + --------|
  |         2   |
  \        x    /
-----------------
        x        
2(1+x236x2)x\frac{2 \left(-1 + \frac{x^{2} - 36}{x^{2}}\right)}{x}
The third derivative [src]
  /           2\
  |    -36 + x |
6*|1 - --------|
  |        2   |
  \       x    /
----------------
        2       
       x        
6(1x236x2)x2\frac{6 \left(1 - \frac{x^{2} - 36}{x^{2}}\right)}{x^{2}}