Mister Exam

Derivative of log5(4x-3)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
log(4*x - 3)
------------
   log(5)   
$$\frac{\log{\left(4 x - 3 \right)}}{\log{\left(5 \right)}}$$
d /log(4*x - 3)\
--|------------|
dx\   log(5)   /
$$\frac{d}{d x} \frac{\log{\left(4 x - 3 \right)}}{\log{\left(5 \right)}}$$
Detail solution
  1. The derivative of a constant times a function is the constant times the derivative of the function.

    1. Let .

    2. The derivative of is .

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

      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 the constant is zero.

        The result is:

      The result of the chain rule is:

    So, the result is:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
       4        
----------------
(4*x - 3)*log(5)
$$\frac{4}{\left(4 x - 3\right) \log{\left(5 \right)}}$$
The second derivative [src]
       -16        
------------------
          2       
(-3 + 4*x) *log(5)
$$- \frac{16}{\left(4 x - 3\right)^{2} \log{\left(5 \right)}}$$
The third derivative [src]
       128        
------------------
          3       
(-3 + 4*x) *log(5)
$$\frac{128}{\left(4 x - 3\right)^{3} \log{\left(5 \right)}}$$
The graph
Derivative of log5(4x-3)