What is the derivative of y=cos(2x) ?

The derivative of y=cos(2x) is -sin(2x)*2

What is the first derivative of y=cos(2x) ?

The first derivative of y=cos(2x) is -sin(2x)*2

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derivative of

y = cos (2 x)

- sin (2 x) \cdot 2

Solution steps

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

Apply the chain rule:

- sin (2 x) \frac{d}{d x} (2 x)

= - sin (2 x) \frac{d}{d x} (2 x)

\frac{d}{d x} (2 x) = 2

= - sin (2 x) \cdot 2

y = \frac{2}{x ^{2}}

x = \frac{1}{2}

(- 4, 3), (5, - 1)

f (x) = 3 x

(- 1, 1), (4, 5)

What is the derivative of y=cos(2x) ?
The derivative of y=cos(2x) is -sin(2x)*2
What is the first derivative of y=cos(2x) ?
The first derivative of y=cos(2x) is -sin(2x)*2