What is the tangent of f(x)=-2xcos(x),(pi,2pi) ?

The tangent of f(x)=-2xcos(x),(pi,2pi) is y=2x

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

tangent of f(x)=-2xcos(x),(pi,2pi)

tangent of

f (x) = - 2 x cos (x), (π, 2 π)

y = 2 x

Solution steps

Find the slope of

f (x) = - 2 x cos (x) : \frac{df ( x )}{d x} = - 2 (cos (x) - x sin (x))

EN : T i tl e G e n er a l Eq u a t i o n Sl o p e A t P o in t 2 Eq : m = 2

Find the line with slope m=

2

and passing through

(π, 2 π) : y = 2 x

y = 2 x

What is the tangent of f(x)=-2xcos(x),(pi,2pi) ?
The tangent of f(x)=-2xcos(x),(pi,2pi) is y=2x