Mister Exam

Derivative of -4x^2cosx

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
    2       
-4*x *cos(x)
$$- 4 x^{2} \cos{\left(x \right)}$$
The graph
The first derivative [src]
                 2       
-8*x*cos(x) + 4*x *sin(x)
$$4 x^{2} \sin{\left(x \right)} - 8 x \cos{\left(x \right)}$$
The second derivative [src]
  /             2                    \
4*\-2*cos(x) + x *cos(x) + 4*x*sin(x)/
$$4 \left(x^{2} \cos{\left(x \right)} + 4 x \sin{\left(x \right)} - 2 \cos{\left(x \right)}\right)$$
The third derivative [src]
  /            2                    \
4*\6*sin(x) - x *sin(x) + 6*x*cos(x)/
$$4 \left(- x^{2} \sin{\left(x \right)} + 6 x \cos{\left(x \right)} + 6 \sin{\left(x \right)}\right)$$
The graph
Derivative of -4x^2cosx