What is the derivative of f(x)=-3sin(3x) ?

The derivative of f(x)=-3sin(3x) is -9cos(3x)

What is the first derivative of f(x)=-3sin(3x) ?

The first derivative of f(x)=-3sin(3x) is -9cos(3x)

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derivative of

f (x) = - 3 sin (3 x)

- 9 cos (3 x)

Solution steps

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

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

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

Apply the chain rule:

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

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

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

= - 3 cos (3 x) \cdot 3

Simplify

= - 9 cos (3 x)

What is the derivative of f(x)=-3sin(3x) ?
The derivative of f(x)=-3sin(3x) is -9cos(3x)
What is the first derivative of f(x)=-3sin(3x) ?
The first derivative of f(x)=-3sin(3x) is -9cos(3x)