Mister Exam

Derivative of x-2lnx

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
x - 2*log(x)
x2log(x)x - 2 \log{\left(x \right)}
x - 2*log(x)
Detail solution
  1. Differentiate x2log(x)x - 2 \log{\left(x \right)} term by term:

    1. Apply the power rule: xx goes to 11

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

      1. The derivative of log(x)\log{\left(x \right)} is 1x\frac{1}{x}.

      So, the result is: 2x- \frac{2}{x}

    The result is: 12x1 - \frac{2}{x}

  2. Now simplify:

    x2x\frac{x - 2}{x}


The answer is:

x2x\frac{x - 2}{x}

The graph
02468-8-6-4-2-1010-5050
The first derivative [src]
    2
1 - -
    x
12x1 - \frac{2}{x}
The second derivative [src]
2 
--
 2
x 
2x2\frac{2}{x^{2}}
The third derivative [src]
-4 
---
  3
 x 
4x3- \frac{4}{x^{3}}
The graph
Derivative of x-2lnx