es

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4cos^2(x)+4cos(x)=1

Solución

4 cos^{2} (x) + 4 cos (x) = 1

Solución

x = 1.36217 \dots + 2 πn, x = 2 π - 1.36217 \dots + 2 πn

+1

Pasos de solución

4 cos^{2} (x) + 4 cos (x) = 1

Usando el método de sustitución

cos (x) = \frac{- 1 + 2}{2}, cos (x) = - \frac{1 + 2}{2}

cos (x) = \frac{- 1 + 2}{2} : x = arccos (\frac{- 1 + 2}{2}) + 2 πn, x = 2 π - arccos (\frac{- 1 + 2}{2}) + 2 πn

cos (x) = - \frac{1 + 2}{2} :

Sin solución

Combinar toda las soluciones

x = arccos (\frac{- 1 + 2}{2}) + 2 πn, x = 2 π - arccos (\frac{- 1 + 2}{2}) + 2 πn

Mostrar soluciones en forma decimal

x = 1.36217 \dots + 2 πn, x = 2 π - 1.36217 \dots + 2 πn

Ejemplos populares

sin (x) = \frac{1}{6}

tan (θ) = \frac{2}{5}

tan(x)+3cot(x)=4

tan (x) + 3 cot (x) = 4

cos(2x)[cos(2x)-3]=0

cos (2 x) [cos (2 x) - 3] = 0

cos^{2} (θ) = \frac{1}{4}