Mister Exam

Derivative of arccos(x)/x

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
acos(x)
-------
   x   
$$\frac{\operatorname{acos}{\left(x \right)}}{x}$$
acos(x)/x
The graph
The first derivative [src]
        1         acos(x)
- ------------- - -------
       ________       2  
      /      2       x   
  x*\/  1 - x            
$$- \frac{1}{x \sqrt{1 - x^{2}}} - \frac{\operatorname{acos}{\left(x \right)}}{x^{2}}$$
The second derivative [src]
       1        2*acos(x)         2       
- ----------- + --------- + --------------
          3/2        3            ________
  /     2\          x        2   /      2 
  \1 - x /                  x *\/  1 - x  
$$- \frac{1}{\left(1 - x^{2}\right)^{\frac{3}{2}}} + \frac{2}{x^{2} \sqrt{1 - x^{2}}} + \frac{2 \operatorname{acos}{\left(x \right)}}{x^{3}}$$
The third derivative [src]
                        2                              
                     3*x                               
              -1 + -------                             
                         2                             
     3             -1 + x    6*acos(x)         6       
----------- + ------------ - --------- - --------------
        3/2           3/2         3            ________
/     2\      /     2\           x        2   /      2 
\1 - x /      \1 - x /                   x *\/  1 - x  
-------------------------------------------------------
                           x                           
$$\frac{\frac{\frac{3 x^{2}}{x^{2} - 1} - 1}{\left(1 - x^{2}\right)^{\frac{3}{2}}} + \frac{3}{\left(1 - x^{2}\right)^{\frac{3}{2}}} - \frac{6}{x^{2} \sqrt{1 - x^{2}}} - \frac{6 \operatorname{acos}{\left(x \right)}}{x^{3}}}{x}$$