What is the derivative of cos(4x) ?

The derivative of cos(4x) is -sin(4x)*4

What is the first derivative of cos(4x) ?

The first derivative of cos(4x) is -sin(4x)*4

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derivative of

cos (4 x)

- sin (4 x) \cdot 4

Solution steps

\frac{d}{d x} (cos (4 x))

Apply the chain rule:

- sin (4 x) \frac{d}{d x} (4 x)

= - sin (4 x) \frac{d}{d x} (4 x)

\frac{d}{d x} (4 x) = 4

= - sin (4 x) \cdot 4

3 x + 4, at x = 4

\frac{d}{d x} (\frac{5 x}{( x ^{2} + 2 ) ^{2}})

f (x) = e^{x} x + 2 e^{x}

\int \frac{1}{x x ^{2} - 12} d x

\frac{d}{d x} (cos (x) sec^{2} (x))

What is the derivative of cos(4x) ?
The derivative of cos(4x) is -sin(4x)*4
What is the first derivative of cos(4x) ?
The first derivative of cos(4x) is -sin(4x)*4