Mister Exam

Other calculators

Derivative of 4*sqrt(x)-8^x^2

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
           / 2\
    ___    \x /
4*\/ x  - 8    
$$- 8^{x^{2}} + 4 \sqrt{x}$$
4*sqrt(x) - 8^(x^2)
Detail solution
  1. Differentiate term by term:

    1. 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:

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

      1. Let .

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

        1. Apply the power rule: goes to

        The result of the chain rule is:

      So, the result is:

    The result is:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
             / 2\       
  2          \x /       
----- - 2*x*8    *log(8)
  ___                   
\/ x                    
$$- 2 \cdot 8^{x^{2}} x \log{\left(8 \right)} + \frac{2}{\sqrt{x}}$$
The second derivative [src]
 /          / 2\             / 2\           \
 | 1        \x /             \x /  2    2   |
-|---- + 2*8    *log(8) + 4*8    *x *log (8)|
 | 3/2                                      |
 \x                                         /
$$- (4 \cdot 8^{x^{2}} x^{2} \log{\left(8 \right)}^{2} + 2 \cdot 8^{x^{2}} \log{\left(8 \right)} + \frac{1}{x^{\frac{3}{2}}})$$
The third derivative [src]
               / 2\              / 2\           
  3            \x /    2         \x /  3    3   
------ - 12*x*8    *log (8) - 8*8    *x *log (8)
   5/2                                          
2*x                                             
$$- 8 \cdot 8^{x^{2}} x^{3} \log{\left(8 \right)}^{3} - 12 \cdot 8^{x^{2}} x \log{\left(8 \right)}^{2} + \frac{3}{2 x^{\frac{5}{2}}}$$