Mister Exam

Derivative of 2/x³

Function f() - derivative -N order at the point
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The graph:

from to

Piecewise:

The solution

You have entered [src]
2 
--
 3
x 
2x3\frac{2}{x^{3}}
d /2 \
--|--|
dx| 3|
  \x /
ddx2x3\frac{d}{d x} \frac{2}{x^{3}}
Detail solution
  1. The derivative of a constant times a function is the constant times the derivative of the function.

    1. Let u=x3u = x^{3}.

    2. Apply the power rule: 1u\frac{1}{u} goes to 1u2- \frac{1}{u^{2}}

    3. Then, apply the chain rule. Multiply by ddxx3\frac{d}{d x} x^{3}:

      1. Apply the power rule: x3x^{3} goes to 3x23 x^{2}

      The result of the chain rule is:

      3x4- \frac{3}{x^{4}}

    So, the result is: 6x4- \frac{6}{x^{4}}


The answer is:

6x4- \frac{6}{x^{4}}

The graph
02468-8-6-4-2-1010-10000050000
The first derivative [src]
-6 
---
  4
 x 
6x4- \frac{6}{x^{4}}
The second derivative [src]
24
--
 5
x 
24x5\frac{24}{x^{5}}
The third derivative [src]
-120 
-----
   6 
  x  
120x6- \frac{120}{x^{6}}
The graph
Derivative of 2/x³