Mister Exam

Derivative of ax^(-5)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
a 
--
 5
x 
ax5\frac{a}{x^{5}}
d /a \
--|--|
dx| 5|
  \x /
xax5\frac{\partial}{\partial x} \frac{a}{x^{5}}
Detail solution
  1. The derivative of a constant times a function is the constant times the derivative of the function.

    1. Apply the power rule: 1x5\frac{1}{x^{5}} goes to 5x6- \frac{5}{x^{6}}

    So, the result is: 5ax6- \frac{5 a}{x^{6}}


The answer is:

5ax6- \frac{5 a}{x^{6}}

The first derivative [src]
-5*a
----
  6 
 x  
5ax6- \frac{5 a}{x^{6}}
The second derivative [src]
30*a
----
  7 
 x  
30ax7\frac{30 a}{x^{7}}
The third derivative [src]
-210*a
------
   8  
  x   
210ax8- \frac{210 a}{x^{8}}