Mister Exam

Derivative of xlnx-2x-2

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
x*log(x) - 2*x - 2
$$\left(x \log{\left(x \right)} - 2 x\right) - 2$$
x*log(x) - 2*x - 2
Detail solution
  1. Differentiate term by term:

    1. Differentiate term by term:

      1. Apply the product rule:

        ; to find :

        1. Apply the power rule: goes to

        ; to find :

        1. The derivative of is .

        The result is:

      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:

    2. The derivative of the constant is zero.

    The result is:


The answer is:

The graph
The first derivative [src]
-1 + log(x)
$$\log{\left(x \right)} - 1$$
The second derivative [src]
1
-
x
$$\frac{1}{x}$$
The third derivative [src]
-1 
---
  2
 x 
$$- \frac{1}{x^{2}}$$