What is the derivative of 2cos^2(x)-1 ?

The derivative of 2cos^2(x)-1 is -sin(2x)*2

What is the first derivative of 2cos^2(x)-1 ?

The first derivative of 2cos^2(x)-1 is -sin(2x)*2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

derivative of

2 cos^{2} (x) - 1

- sin (2 x) \cdot 2

Solution steps

\frac{d}{d x} (2 cos^{2} (x) - 1)

Simplify

2 cos^{2} (x) - 1 : cos (2 x)

= \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

What is the derivative of 2cos^2(x)-1 ?
The derivative of 2cos^2(x)-1 is -sin(2x)*2
What is the first derivative of 2cos^2(x)-1 ?
The first derivative of 2cos^2(x)-1 is -sin(2x)*2