Mister Exam

Derivative of 4log2*x

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
4*log(2*x)
4log(2x)4 \log{\left(2 x \right)}
d             
--(4*log(2*x))
dx            
ddx4log(2x)\frac{d}{d x} 4 \log{\left(2 x \right)}
Detail solution
  1. The derivative of a constant times a function is the constant times the derivative of the function.

    1. Let u=2xu = 2 x.

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

    3. Then, apply the chain rule. Multiply by ddx2x\frac{d}{d x} 2 x:

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

        1. Apply the power rule: xx goes to 11

        So, the result is: 22

      The result of the chain rule is:

      1x\frac{1}{x}

    So, the result is: 4x\frac{4}{x}


The answer is:

4x\frac{4}{x}

The graph
02468-8-6-4-2-1010-100100
The first derivative [src]
4
-
x
4x\frac{4}{x}
The second derivative [src]
-4 
---
  2
 x 
4x2- \frac{4}{x^{2}}
The third derivative [src]
8 
--
 3
x 
8x3\frac{8}{x^{3}}
The graph
Derivative of 4log2*x