pt

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

(2cos(x)+1)(sin(x)-1)=0

Solução

(2 cos (x) + 1) (sin (x) - 1) = 0

Solução

x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn, x = \frac{π}{2} + 2 πn

+1

Graus

x = 12 0^{\circ} + 36 0^{\circ} n, x = 24 0^{\circ} + 36 0^{\circ} n, x = 9 0^{\circ} + 36 0^{\circ} n

Passos da solução

(2 cos (x) + 1) (sin (x) - 1) = 0

Resolver cada parte separadamente

2 cos (x) + 1 = 0 or sin (x) - 1 = 0

2 cos (x) + 1 = 0 : x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn

2 cos (x) + 1 = 0

Mova

1

para o lado direito

2 cos (x) + 1 = 0

Subtrair

1

de ambos os lados

2 cos (x) + 1 - 1 = 0 - 1

Simplificar

2 cos (x) = - 1

2 cos (x) = - 1

Dividir ambos os lados por

2

2 cos (x) = - 1

Dividir ambos os lados por

2

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

Simplificar

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

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

Soluções gerais para

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

cos (x)

tabela de periodicidade com ciclo de

2 πn

:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn

x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn

sin (x) - 1 = 0 : x = \frac{π}{2} + 2 πn

sin (x) - 1 = 0

Mova

1

para o lado direito

sin (x) - 1 = 0

Adicionar

1

a ambos os lados

sin (x) - 1 + 1 = 0 + 1

Simplificar

sin (x) = 1

sin (x) = 1

Soluções gerais para

sin (x) = 1

sin (x)

tabela de periodicidade com ciclo de

2 πn

:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

x = \frac{π}{2} + 2 πn

x = \frac{π}{2} + 2 πn

Combinar toda as soluções

x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn, x = \frac{π}{2} + 2 πn

Exemplos populares

3cos^2(θ)-sin^2(θ)=0

3 cos^{2} (θ) - sin^{2} (θ) = 0

solvefor x,cos^2(xy)= 1/4 resolver para

x, cos^{2} (x y) = \frac{1}{4}

sin(x)=((sqrt(6))/4)

sin (x) = (\frac{6}{4})

sqrt(3)*sin(x)+cos(x)=sqrt(3)

3 \cdot sin (x) + cos (x) = 3

sin(θ)=(sqrt(5))/5

sin (θ) = \frac{5}{5}