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The derivative of the function/ sqrt(x)*log(x)

Derivative of sqrt(x)*log(x)

The solution

You have entered [src]

  ___       
\/ x *log(x)

$$\sqrt{x} \log{\left(x \right)}$$

sqrt(x)*log(x)

Detail solution

Apply the product rule:

$\frac{d}{d x} f{\left(x \right)} g{\left(x \right)} = f{\left(x \right)} \frac{d}{d x} g{\left(x \right)} + g{\left(x \right)} \frac{d}{d x} f{\left(x \right)}$

$f{\left(x \right)} = \sqrt{x}$ ; to find $\frac{d}{d x} f{\left(x \right)}$ :
1. Apply the power rule: $\sqrt{x}$ goes to $\frac{1}{2 \sqrt{x}}$
$g{\left(x \right)} = \log{\left(x \right)}$ ; to find $\frac{d}{d x} g{\left(x \right)}$ :
1. The derivative of $\log{\left(x \right)}$ is $\frac{1}{x}$ .
The result is: $\frac{\log{\left(x \right)}}{2 \sqrt{x}} + \frac{1}{\sqrt{x}}$
Now simplify:

$\frac{\log{\left(x \right)} + 2}{2 \sqrt{x}}$

The answer is:

$\frac{\log{\left(x \right)} + 2}{2 \sqrt{x}}$

The graph

Plot the graph f(x)

Plot the graph f'(x)

The first derivative [src]

  1      log(x)
----- + -------
  ___       ___
\/ x    2*\/ x

$$\frac{\log{\left(x \right)}}{2 \sqrt{x}} + \frac{1}{\sqrt{x}}$$

Simplify

The second derivative [src]

-log(x) 
--------
    3/2 
 4*x

$$- \frac{\log{\left(x \right)}}{4 x^{\frac{3}{2}}}$$

Simplify

The third derivative [src]

-2 + 3*log(x)
-------------
       5/2   
    8*x

$$\frac{3 \log{\left(x \right)} - 2}{8 x^{\frac{5}{2}}}$$

Simplify

The graph

Derivative of sqrt(x)*log(x)