Mister Exam

Lang:

Other calculators

How to use it?
Derivative of:
Derivative of 5x^3
Derivative of 4*sqrt(x)
Derivative of 10x
Derivative of x*ctgx
Graphing y =:
(x-2)/(x^2-1)
Identical expressions
(x- two)/(x^ two - one)
(x minus 2) divide by (x squared minus 1)
(x minus two) divide by (x to the power of two minus one)
(x-2)/(x2-1)
x-2/x2-1
(x-2)/(x²-1)
(x-2)/(x to the power of 2-1)
x-2/x^2-1
(x-2) divide by (x^2-1)
Similar expressions
(x+2)/(x^2-1)
(x-2)/(x^2+1)

The derivative of the function/ (x-2)/(x^2-1)

Derivative of (x-2)/(x^2-1)

The solution

You have entered [src]

x - 2 
------
 2    
x  - 1

$$\frac{x - 2}{x^{2} - 1}$$

(x - 2)/(x^2 - 1)

Detail solution

Apply the quotient rule, which is:

$\frac{d}{d x} \frac{f{\left(x \right)}}{g{\left(x \right)}} = \frac{- f{\left(x \right)} \frac{d}{d x} g{\left(x \right)} + g{\left(x \right)} \frac{d}{d x} f{\left(x \right)}}{g^{2}{\left(x \right)}}$

$f{\left(x \right)} = x - 2$ and $g{\left(x \right)} = x^{2} - 1$ .

To find $\frac{d}{d x} f{\left(x \right)}$ :
1. Differentiate $x - 2$ term by term:
  1. The derivative of the constant $-2$ is zero.
  2. Apply the power rule: $x$ goes to $1$
  The result is: $1$
To find $\frac{d}{d x} g{\left(x \right)}$ :
1. Differentiate $x^{2} - 1$ term by term:
  1. The derivative of the constant $-1$ is zero.
  2. Apply the power rule: $x^{2}$ goes to $2 x$
  The result is: $2 x$
Now plug in to the quotient rule:

$\frac{x^{2} - 2 x \left(x - 2\right) - 1}{\left(x^{2} - 1\right)^{2}}$

The answer is:

$\frac{x^{2} - 2 x \left(x - 2\right) - 1}{\left(x^{2} - 1\right)^{2}}$

The graph

Plot the graph f(x)

Plot the graph f'(x)

The first derivative [src]

  1      2*x*(x - 2)
------ - -----------
 2                2 
x  - 1    / 2    \  
          \x  - 1/

$$- \frac{2 x \left(x - 2\right)}{\left(x^{2} - 1\right)^{2}} + \frac{1}{x^{2} - 1}$$

Simplify

The second derivative [src]

  /       /          2 \         \
  |       |       4*x  |         |
2*|-2*x + |-1 + -------|*(-2 + x)|
  |       |           2|         |
  \       \     -1 + x /         /
----------------------------------
                     2            
            /      2\             
            \-1 + x /

$$\frac{2 \left(- 2 x + \left(x - 2\right) \left(\frac{4 x^{2}}{x^{2} - 1} - 1\right)\right)}{\left(x^{2} - 1\right)^{2}}$$

Simplify

The third derivative [src]

  /                   /          2 \         \
  |                   |       2*x  |         |
  |               4*x*|-1 + -------|*(-2 + x)|
  |          2        |           2|         |
  |       4*x         \     -1 + x /         |
6*|-1 + ------- - ---------------------------|
  |           2                   2          |
  \     -1 + x              -1 + x           /
----------------------------------------------
                           2                  
                  /      2\                   
                  \-1 + x /

$$\frac{6 \left(\frac{4 x^{2}}{x^{2} - 1} - \frac{4 x \left(x - 2\right) \left(\frac{2 x^{2}}{x^{2} - 1} - 1\right)}{x^{2} - 1} - 1\right)}{\left(x^{2} - 1\right)^{2}}$$

Simplify

The graph

Other calculators

How to use it?

Identical expressions

Similar expressions

Derivative of (x-2)/(x^2-1)

The graph:

Piecewise:

The solution