Mister Exam

Derivative of sqrt(1-x)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
  _______
\/ 1 - x 
1x\sqrt{1 - x}
sqrt(1 - x)
Detail solution
  1. Let u=1xu = 1 - x.

  2. Apply the power rule: u\sqrt{u} goes to 12u\frac{1}{2 \sqrt{u}}

  3. Then, apply the chain rule. Multiply by ddx(1x)\frac{d}{d x} \left(1 - x\right):

    1. Differentiate 1x1 - x term by term:

      1. The derivative of the constant 11 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: xx goes to 11

        So, the result is: 1-1

      The result is: 1-1

    The result of the chain rule is:

    121x- \frac{1}{2 \sqrt{1 - x}}


The answer is:

121x- \frac{1}{2 \sqrt{1 - x}}

The graph
02468-8-6-4-2-10105-5
The first derivative [src]
    -1     
-----------
    _______
2*\/ 1 - x 
121x- \frac{1}{2 \sqrt{1 - x}}
The second derivative [src]
    -1      
------------
         3/2
4*(1 - x)   
14(1x)32- \frac{1}{4 \left(1 - x\right)^{\frac{3}{2}}}
The third derivative [src]
    -3      
------------
         5/2
8*(1 - x)   
38(1x)52- \frac{3}{8 \left(1 - x\right)^{\frac{5}{2}}}
The graph
Derivative of sqrt(1-x)