What is the derivative of cos(-4t) ?

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

What is the first derivative of cos(-4t) ?

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

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derivative of

cos (- 4 t)

- sin (4 t) \cdot 4

Solution steps

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

Simplify

cos (- 4 t) : cos (4 t)

= \frac{d}{d t} (cos (4 t))

Apply the chain rule:

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

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

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

= - sin (4 t) \cdot 4

\frac{d}{d x} (sin (x) + \frac{1}{2} cot (x))

y = x + ln (3 x)

\int_{0}^{\frac{3 π}{4}} sec^{4} (\frac{x}{3}) d x

\int 2 r 1 - r^{2} d r

\frac{d}{d x} (\frac{x ^{3} + 3 x}{x ^{2} + 1})

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