Mister Exam

Derivative of log(2*x-1)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
log(2*x - 1)
$$\log{\left(2 x - 1 \right)}$$
log(2*x - 1)
Detail solution
  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:

  4. Now simplify:


The answer is:

The graph
The first derivative [src]
   2   
-------
2*x - 1
$$\frac{2}{2 x - 1}$$
The second derivative [src]
    -4     
-----------
          2
(-1 + 2*x) 
$$- \frac{4}{\left(2 x - 1\right)^{2}}$$
The third derivative [src]
     16    
-----------
          3
(-1 + 2*x) 
$$\frac{16}{\left(2 x - 1\right)^{3}}$$
The graph
Derivative of log(2*x-1)