Mister Exam

Derivative of y=x^3log2(x)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
 3 log(x)
x *------
   log(2)
$$x^{3} \frac{\log{\left(x \right)}}{\log{\left(2 \right)}}$$
x^3*(log(x)/log(2))
Detail solution
  1. Apply the quotient rule, which is:

    and .

    To find :

    1. Apply the product rule:

      ; to find :

      1. Apply the power rule: goes to

      ; to find :

      1. The derivative of is .

      The result is:

    To find :

    1. The derivative of the constant is zero.

    Now plug in to the quotient rule:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
   2        2       
  x      3*x *log(x)
------ + -----------
log(2)      log(2)  
$$\frac{3 x^{2} \log{\left(x \right)}}{\log{\left(2 \right)}} + \frac{x^{2}}{\log{\left(2 \right)}}$$
The second derivative [src]
x*(5 + 6*log(x))
----------------
     log(2)     
$$\frac{x \left(6 \log{\left(x \right)} + 5\right)}{\log{\left(2 \right)}}$$
The third derivative [src]
11 + 6*log(x)
-------------
    log(2)   
$$\frac{6 \log{\left(x \right)} + 11}{\log{\left(2 \right)}}$$
The graph
Derivative of y=x^3log2(x)