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

- sin (4 x) \cdot 4

Solution steps

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

Simplify

cos (- 4 x) : cos (4 x)

= \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

x \to \infty lim (\frac{x}{10})

x \to - 5 lim (- 8)

\frac{x ^{2}}{1 + 4 x}

\frac{d}{d x} (x^{2} cos (4 x + 3))

\int_{1}^{6} π (x - 1)^{2} d 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