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))

Simplify

cos (- 3 x) : cos (3 x)

= \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

sin (t) - sin (t) cos (t) - 5 t

f (t) = - \frac{50}{t ^{3}} + \frac{5}{t ^{2}}

\int e tan (x) d x

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

\int \frac{sin ( 2 x )}{cos ^{2} ( 2 x ) + 5} 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