Mister Exam

Derivative of а(sint-tcost)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
a*(sin(t) - tcost)
a(tcost+sin(t))a \left(- tcost + \sin{\left(t \right)}\right)
d                     
--(a*(sin(t) - tcost))
dt                    
ta(tcost+sin(t))\frac{\partial}{\partial t} a \left(- tcost + \sin{\left(t \right)}\right)
Detail solution
  1. The derivative of a constant times a function is the constant times the derivative of the function.

    1. Differentiate tcost+sin(t)- tcost + \sin{\left(t \right)} term by term:

      1. The derivative of sine is cosine:

        ddtsin(t)=cos(t)\frac{d}{d t} \sin{\left(t \right)} = \cos{\left(t \right)}

      2. The derivative of the constant tcost- tcost is zero.

      The result is: cos(t)\cos{\left(t \right)}

    So, the result is: acos(t)a \cos{\left(t \right)}


The answer is:

acos(t)a \cos{\left(t \right)}

The first derivative [src]
a*cos(t)
acos(t)a \cos{\left(t \right)}
The second derivative [src]
-a*sin(t)
asin(t)- a \sin{\left(t \right)}
The third derivative [src]
-a*cos(t)
acos(t)- a \cos{\left(t \right)}