What is the derivative of cos(3x) ?

The derivative of cos(3x) is -sin(3x)*3

What is the first derivative of cos(3x) ?

The first derivative of cos(3x) is -sin(3x)*3

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derivative of

cos (3 x)

- sin (3 x) \cdot 3

Solution steps

\frac{d}{d x} (cos (3 x))

Apply the chain rule:

- sin (3 x) \frac{d}{d x} (3 x)

= - sin (3 x) \frac{d}{d x} (3 x)

\frac{d}{d x} (3 x) = 3

= - sin (3 x) \cdot 3

\int 60 d x

\int x^{4} x + 1 d x

f (x) = (3 x + 1)^{2}

\int_{0}^{2} \int_{3 y}^{6} 5 e^{x^{2}} d x d y

\int 3 x cos (5 x) d x

What is the derivative of cos(3x) ?
The derivative of cos(3x) is -sin(3x)*3
What is the first derivative of cos(3x) ?
The first derivative of cos(3x) is -sin(3x)*3