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Derivative of (((x^3)/(1-x))-(sqrt(x)))*(ln((x^2)+1))

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
/   3         \            
|  x       ___|    / 2    \
|----- - \/ x |*log\x  + 1/
\1 - x        /            
$$\left(- \sqrt{x} + \frac{x^{3}}{1 - x}\right) \log{\left(x^{2} + 1 \right)}$$
(x^3/(1 - x) - sqrt(x))*log(x^2 + 1)
Detail solution
  1. Apply the quotient rule, which is:

    and .

    To find :

    1. Apply the product rule:

      ; to find :

      1. Differentiate term by term:

        1. Apply the power rule: goes to

        2. The derivative of a constant times a function is the constant times the derivative of the function.

          1. Apply the product rule:

            ; to find :

            1. Apply the power rule: goes to

            ; to find :

            1. Differentiate term by term:

              1. The derivative of the constant is zero.

              2. The derivative of a constant times a function is the constant times the derivative of the function.

                1. Apply the power rule: goes to

                So, the result is:

              The result is:

            The result is:

          So, the result is:

        The result is:

      ; to find :

      1. Let .

      2. The derivative of is .

      3. Then, apply the chain rule. Multiply by :

        1. Differentiate term by term:

          1. Apply the power rule: goes to

          2. The derivative of the constant is zero.

          The result is:

        The result of the chain rule is:

      The result is:

    To find :

    1. Differentiate term by term:

      1. The derivative of the constant is zero.

      2. The derivative of a constant times a function is the constant times the derivative of the function.

        1. Apply the power rule: goes to

        So, the result is:

      The result is:

    Now plug in to the quotient rule:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
                                                 /   3         \
                                                 |  x       ___|
/                3          2\               2*x*|----- - \/ x |
|     1         x        3*x |    / 2    \       \1 - x        /
|- ------- + -------- + -----|*log\x  + 1/ + -------------------
|      ___          2   1 - x|                       2          
\  2*\/ x    (1 - x)         /                      x  + 1      
$$\frac{2 x \left(- \sqrt{x} + \frac{x^{3}}{1 - x}\right)}{x^{2} + 1} + \left(\frac{x^{3}}{\left(1 - x\right)^{2}} + \frac{3 x^{2}}{1 - x} - \frac{1}{2 \sqrt{x}}\right) \log{\left(x^{2} + 1 \right)}$$
The second derivative [src]
  /               2           3           \                   /              3         2 \     /         2 \ /           3  \
  |   1       24*x         8*x       24*x |    /     2\       |  1        2*x       6*x  |     |      2*x  | |  ___     x   |
  |- ---- - --------- + --------- + ------|*log\1 + x /   2*x*|----- - --------- + ------|   2*|-1 + ------|*|\/ x  + ------|
  |   3/2           2           3   -1 + x|                   |  ___           2   -1 + x|     |          2| \        -1 + x/
  \  x      (-1 + x)    (-1 + x)          /                   \\/ x    (-1 + x)          /     \     1 + x /                 
- ----------------------------------------------------- - -------------------------------- + --------------------------------
                            4                                               2                                  2             
                                                                       1 + x                              1 + x              
$$- \frac{2 x \left(- \frac{2 x^{3}}{\left(x - 1\right)^{2}} + \frac{6 x^{2}}{x - 1} + \frac{1}{\sqrt{x}}\right)}{x^{2} + 1} + \frac{2 \left(\sqrt{x} + \frac{x^{3}}{x - 1}\right) \left(\frac{2 x^{2}}{x^{2} + 1} - 1\right)}{x^{2} + 1} - \frac{\left(\frac{8 x^{3}}{\left(x - 1\right)^{3}} - \frac{24 x^{2}}{\left(x - 1\right)^{2}} + \frac{24 x}{x - 1} - \frac{1}{x^{\frac{3}{2}}}\right) \log{\left(x^{2} + 1 \right)}}{4}$$
The third derivative [src]
    /                                  3           2  \                 /         2 \ /              3         2 \       /               2           3           \       /         2 \ /           3  \
    | 1       16        48*x       16*x        48*x   |    /     2\     |      2*x  | |  1        2*x       6*x  |       |   1       24*x         8*x       24*x |       |      4*x  | |  ___     x   |
  3*|---- + ------ - --------- - --------- + ---------|*log\1 + x /   3*|-1 + ------|*|----- - --------- + ------|   3*x*|- ---- - --------- + --------- + ------|   4*x*|-3 + ------|*|\/ x  + ------|
    | 5/2   -1 + x           2           4           3|                 |          2| |  ___           2   -1 + x|       |   3/2           2           3   -1 + x|       |          2| \        -1 + x/
    \x               (-1 + x)    (-1 + x)    (-1 + x) /                 \     1 + x / \\/ x    (-1 + x)          /       \  x      (-1 + x)    (-1 + x)          /       \     1 + x /                 
- ----------------------------------------------------------------- + -------------------------------------------- - --------------------------------------------- - ----------------------------------
                                  8                                                           2                                          /     2\                                        2             
                                                                                         1 + x                                         2*\1 + x /                                /     2\              
                                                                                                                                                                                 \1 + x /              
$$- \frac{4 x \left(\sqrt{x} + \frac{x^{3}}{x - 1}\right) \left(\frac{4 x^{2}}{x^{2} + 1} - 3\right)}{\left(x^{2} + 1\right)^{2}} - \frac{3 x \left(\frac{8 x^{3}}{\left(x - 1\right)^{3}} - \frac{24 x^{2}}{\left(x - 1\right)^{2}} + \frac{24 x}{x - 1} - \frac{1}{x^{\frac{3}{2}}}\right)}{2 \left(x^{2} + 1\right)} - \frac{3 \left(- \frac{16 x^{3}}{\left(x - 1\right)^{4}} + \frac{48 x^{2}}{\left(x - 1\right)^{3}} - \frac{48 x}{\left(x - 1\right)^{2}} + \frac{16}{x - 1} + \frac{1}{x^{\frac{5}{2}}}\right) \log{\left(x^{2} + 1 \right)}}{8} + \frac{3 \left(\frac{2 x^{2}}{x^{2} + 1} - 1\right) \left(- \frac{2 x^{3}}{\left(x - 1\right)^{2}} + \frac{6 x^{2}}{x - 1} + \frac{1}{\sqrt{x}}\right)}{x^{2} + 1}$$