en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

inverse of 2cos(x)

Solution

inverse

2 cos (x)

Solution

arccos (\frac{x}{2})

Solution steps

Solve for

cos (x), y = 2 cos (x)

cos (x) = \frac{y}{2}

cos (a) = b \Rightarrow a = arccos (b)

arccos (\frac{y}{2})

Substitute

y = x

arccos (\frac{x}{2})

Popular Examples

simplify (1.3)(-1.2)simplify

(1.3) (- 1.2)

extreme f(x)=-3x^4+16x^3-18x^2 extreme points

f (x) = - 3 x^{4} + 16 x^{3} - 18 x^{2}

domain of f(x)= 1/(9-x)domain

f (x) = \frac{1}{9 - x}

inverse of f(x)=(x-2)/(x+2)inverse

f (x) = \frac{x - 2}{x + 2}

monotone f(x)=sqrt(x-3)-1 monotone intervals

f (x) = x - 3 - 1

Frequently Asked Questions (FAQ)

What is the inverse of 2cos(x) ?
The inverse of 2cos(x) is arccos(x/2)