What is the general solution for cos^2(x)-3cos(x)=0 ?

The general solution for cos^2(x)-3cos(x)=0 is x= pi/2+2pin,x=(3pi)/2+2pin

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

cos^2(x)-3cos(x)=0

cos^{2} (x) - 3 cos (x) = 0

x = \frac{π}{2} + 2 πn, x = \frac{3 π}{2} + 2 πn

Solution steps

cos^{2} (x) - 3 cos (x) = 0

Solve by substitution

cos (x) = 3, cos (x) = 0

cos (x) = 3 :

No Solution

cos (x) = 0 : x = \frac{π}{2} + 2 πn, x = \frac{3 π}{2} + 2 πn

Combine all the solutions

x = \frac{π}{2} + 2 πn, x = \frac{3 π}{2} + 2 πn

- 2 cos (θ) = 0

2 cos^{2} (x) + 15 sin (x) = 9

cot (θ) = 1.413

arccos (x) + arccos (2 x) = arccos (\frac{1}{2})

tan (θ) = \frac{2 3}{3} sin (θ), 0 \leq θ \leq 2 π

What is the general solution for cos^2(x)-3cos(x)=0 ?
The general solution for cos^2(x)-3cos(x)=0 is x= pi/2+2pin,x=(3pi)/2+2pin