Mister Exam

Derivative of y=sinx-3sqrtx

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
             ___
sin(x) - 3*\/ x 
$$- 3 \sqrt{x} + \sin{\left(x \right)}$$
sin(x) - 3*sqrt(x)
Detail solution
  1. Differentiate term by term:

    1. The derivative of sine is cosine:

    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 answer is:

The graph
The first derivative [src]
     3            
- ------- + cos(x)
      ___         
  2*\/ x          
$$\cos{\left(x \right)} - \frac{3}{2 \sqrt{x}}$$
The second derivative [src]
            3   
-sin(x) + ------
             3/2
          4*x   
$$- \sin{\left(x \right)} + \frac{3}{4 x^{\frac{3}{2}}}$$
The third derivative [src]
 /  9            \
-|------ + cos(x)|
 |   5/2         |
 \8*x            /
$$- (\cos{\left(x \right)} + \frac{9}{8 x^{\frac{5}{2}}})$$
The graph
Derivative of y=sinx-3sqrtx