Mister Exam

Other calculators

Derivative of 3sin(t/a)+cos(pi/17)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
     /t\      /pi\
3*sin|-| + cos|--|
     \a/      \17/
$$3 \sin{\left(\frac{t}{a} \right)} + \cos{\left(\frac{\pi}{17} \right)}$$
d /     /t\      /pi\\
--|3*sin|-| + cos|--||
dt\     \a/      \17//
$$\frac{\partial}{\partial t} \left(3 \sin{\left(\frac{t}{a} \right)} + \cos{\left(\frac{\pi}{17} \right)}\right)$$
Detail solution
  1. Differentiate term by term:

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

      1. Let .

      2. The derivative of sine is cosine:

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

        1. 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 of the chain rule is:

      So, the result is:

    2. Let .

    3. The derivative of cosine is negative sine:

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

      1. The derivative of the constant is zero.

      The result of the chain rule is:

    The result is:


The answer is:

The first derivative [src]
     /t\
3*cos|-|
     \a/
--------
   a    
$$\frac{3 \cos{\left(\frac{t}{a} \right)}}{a}$$
The second derivative [src]
      /t\
-3*sin|-|
      \a/
---------
     2   
    a    
$$- \frac{3 \sin{\left(\frac{t}{a} \right)}}{a^{2}}$$
The third derivative [src]
      /t\
-3*cos|-|
      \a/
---------
     3   
    a    
$$- \frac{3 \cos{\left(\frac{t}{a} \right)}}{a^{3}}$$