Mister Exam

Derivative of sqrtx-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)
$$\sqrt{x} - 2 \log{\left(x \right)}$$
sqrt(x) - 2*log(x)
Detail solution
  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. The derivative of is .

      So, the result is:

    The result is:


The answer is:

The graph
The first derivative [src]
   1      2
------- - -
    ___   x
2*\/ x     
$$- \frac{2}{x} + \frac{1}{2 \sqrt{x}}$$
The second derivative [src]
2      1   
-- - ------
 2      3/2
x    4*x   
$$\frac{2}{x^{2}} - \frac{1}{4 x^{\frac{3}{2}}}$$
The third derivative [src]
  4      3   
- -- + ------
   3      5/2
  x    8*x   
$$- \frac{4}{x^{3}} + \frac{3}{8 x^{\frac{5}{2}}}$$