Mister Exam

Derivative of y=sen(2x-3)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
sin(2*x - 3)
sin(2x3)\sin{\left(2 x - 3 \right)}
sin(2*x - 3)
Detail solution
  1. Let u=2x3u = 2 x - 3.

  2. The derivative of sine is cosine:

    ddusin(u)=cos(u)\frac{d}{d u} \sin{\left(u \right)} = \cos{\left(u \right)}

  3. Then, apply the chain rule. Multiply by ddx(2x3)\frac{d}{d x} \left(2 x - 3\right):

    1. Differentiate 2x32 x - 3 term by term:

      1. 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: 22

      2. The derivative of the constant 3-3 is zero.

      The result is: 22

    The result of the chain rule is:

    2cos(2x3)2 \cos{\left(2 x - 3 \right)}

  4. Now simplify:

    2cos(2x3)2 \cos{\left(2 x - 3 \right)}


The answer is:

2cos(2x3)2 \cos{\left(2 x - 3 \right)}

The graph
02468-8-6-4-2-10105-5
The first derivative [src]
2*cos(2*x - 3)
2cos(2x3)2 \cos{\left(2 x - 3 \right)}
The second derivative [src]
-4*sin(-3 + 2*x)
4sin(2x3)- 4 \sin{\left(2 x - 3 \right)}
The third derivative [src]
-8*cos(-3 + 2*x)
8cos(2x3)- 8 \cos{\left(2 x - 3 \right)}
The graph
Derivative of y=sen(2x-3)