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y=x*sqrt(1-x^4)

Derivative of y=x*sqrt(1-x^4)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
     ________
    /      4 
x*\/  1 - x  
$$x \sqrt{- x^{4} + 1}$$
  /     ________\
d |    /      4 |
--\x*\/  1 - x  /
dx               
$$\frac{d}{d x} x \sqrt{- x^{4} + 1}$$
Detail solution
  1. Apply the product rule:

    ; to find :

    1. Apply the power rule: goes to

    ; to find :

    1. Let .

    2. Apply the power rule: goes to

    3. Then, apply the chain rule. Multiply by :

      1. Differentiate term by term:

        1. The derivative of the constant is zero.

        2. The derivative of a constant times a function is the constant times the derivative of the function.

          1. Apply the power rule: goes to

          So, the result is:

        The result is:

      The result of the chain rule is:

    The result is:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
   ________          4   
  /      4        2*x    
\/  1 - x   - -----------
                 ________
                /      4 
              \/  1 - x  
$$- \frac{2 x^{4}}{\sqrt{- x^{4} + 1}} + \sqrt{- x^{4} + 1}$$
The second derivative [src]
     /          4 \
   3 |       2*x  |
2*x *|-5 + -------|
     |           4|
     \     -1 + x /
-------------------
       ________    
      /      4     
    \/  1 - x      
$$\frac{2 x^{3} \cdot \left(\frac{2 x^{4}}{x^{4} - 1} - 5\right)}{\sqrt{- x^{4} + 1}}$$
The third derivative [src]
     /           8           4 \
   2 |        4*x         8*x  |
6*x *|-5 - ---------- + -------|
     |              2         4|
     |     /      4\    -1 + x |
     \     \-1 + x /           /
--------------------------------
             ________           
            /      4            
          \/  1 - x             
$$\frac{6 x^{2} \left(- \frac{4 x^{8}}{\left(x^{4} - 1\right)^{2}} + \frac{8 x^{4}}{x^{4} - 1} - 5\right)}{\sqrt{- x^{4} + 1}}$$
The graph
Derivative of y=x*sqrt(1-x^4)