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Popular Trigonometria >

sin(x)tan^2(x)=sin(x)

Solução

sin (x) tan^{2} (x) = sin (x)

Solução

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

+1

Graus

x = 0^{\circ} + 36 0^{\circ} n, x = 18 0^{\circ} + 36 0^{\circ} n, x = 13 5^{\circ} + 18 0^{\circ} n, x = 4 5^{\circ} + 18 0^{\circ} n

Passos da solução

sin (x) tan^{2} (x) = sin (x)

Subtrair

sin (x)

de ambos os lados

tan^{2} (x) sin (x) - sin (x) = 0

Fatorar

tan^{2} (x) sin (x) - sin (x) : sin (x) (tan (x) + 1) (tan (x) - 1)

tan^{2} (x) sin (x) - sin (x)

Fatorar o termo comum

sin (x)

= sin (x) (tan^{2} (x) - 1)

Fatorar

tan^{2} (x) - 1 : (tan (x) + 1) (tan (x) - 1)

tan^{2} (x) - 1

Reescrever

1

como

1^{2}

= tan^{2} (x) - 1^{2}

Aplicar a regra da diferença de quadrados:

x^{2} - y^{2} = (x + y) (x - y)

tan^{2} (x) - 1^{2} = (tan (x) + 1) (tan (x) - 1)

= (tan (x) + 1) (tan (x) - 1)

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

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

Resolver cada parte separadamente

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

sin (x) = 0 : x = 2 πn, x = π + 2 πn

sin (x) = 0

Soluções gerais para

sin (x) = 0

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 = 0 + 2 πn, x = π + 2 πn

x = 0 + 2 πn, x = π + 2 πn

Resolver

x = 0 + 2 πn : x = 2 πn

x = 0 + 2 πn

0 + 2 πn = 2 πn

x = 2 πn

x = 2 πn, x = π + 2 πn

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

tan (x) + 1 = 0

Mova

1

para o lado direito

tan (x) + 1 = 0

Subtrair

1

de ambos os lados

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

Simplificar

tan (x) = - 1

tan (x) = - 1

Soluções gerais para

tan (x) = - 1

tan (x)

tabela de periodicidade com ciclo de

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} tan (x) 0 \frac{3}{3} 13 \pm \infty - 3 - 1 - \frac{3}{3}

x = \frac{3 π}{4} + πn

x = \frac{3 π}{4} + πn

tan (x) - 1 = 0 : x = \frac{π}{4} + πn

tan (x) - 1 = 0

Mova

1

para o lado direito

tan (x) - 1 = 0

Adicionar

1

a ambos os lados

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

Simplificar

tan (x) = 1

tan (x) = 1

Soluções gerais para

tan (x) = 1

tan (x)

tabela de periodicidade com ciclo de

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} tan (x) 0 \frac{3}{3} 13 \pm \infty - 3 - 1 - \frac{3}{3}

x = \frac{π}{4} + πn

x = \frac{π}{4} + πn

Combinar toda as soluções

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

Gráfico

Exemplos populares

sin(θ)cos(3θ)+cos(θ)sin(3θ)=0

19sin(x)+9=sin(x)

tan(x/4)+sqrt(3)=0

4sin^2(x)tan(x)=tan(x)