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(x*(x-2))/(2*(x-1)^2)

Derivative of (x*(x-2))/(2*(x-1)^2)

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

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Piecewise:

The solution

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

    and .

    To find :

    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. Apply the power rule: goes to

        The result is:

      The result is:

    To find :

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

      1. Let .

      2. Apply the power rule: goes to

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

        1. Differentiate term by term:

          1. The derivative of the constant is zero.

          2. Apply the power rule: goes to

          The result is:

        The result of the chain rule is:

      So, the result is:

    Now plug in to the quotient rule:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
      1            1                x*(4 - 4*x)*(x - 2)
x*---------- + ----------*(x - 2) + -------------------
           2            2                         4    
  2*(x - 1)    2*(x - 1)                 4*(x - 1)     
$$\frac{x \left(4 - 4 x\right) \left(x - 2\right)}{4 \left(x - 1\right)^{4}} + x \frac{1}{2 \left(x - 1\right)^{2}} + \frac{1}{2 \left(x - 1\right)^{2}} \left(x - 2\right)$$
The second derivative [src]
     2*x     2*(-2 + x)   3*x*(-2 + x)
1 - ------ - ---------- + ------------
    -1 + x     -1 + x              2  
                           (-1 + x)   
--------------------------------------
                      2               
              (-1 + x)                
$$\frac{\frac{3 x \left(x - 2\right)}{\left(x - 1\right)^{2}} - \frac{2 x}{x - 1} - \frac{2 \left(x - 2\right)}{x - 1} + 1}{\left(x - 1\right)^{2}}$$
The third derivative [src]
  /      3*x     3*(-2 + x)   4*x*(-2 + x)\
3*|-2 + ------ + ---------- - ------------|
  |     -1 + x     -1 + x              2  |
  \                            (-1 + x)   /
-------------------------------------------
                         3                 
                 (-1 + x)                  
$$\frac{3 \left(- \frac{4 x \left(x - 2\right)}{\left(x - 1\right)^{2}} + \frac{3 x}{x - 1} + \frac{3 \left(x - 2\right)}{x - 1} - 2\right)}{\left(x - 1\right)^{3}}$$
The graph
Derivative of (x*(x-2))/(2*(x-1)^2)