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Popular Trigonometria >

cos(pix^2)=0

Solução

cos (π x^{2}) = 0

Solução

x = \frac{1}{2} + 2 n, x = - \frac{1}{2} + 2 n, x = \frac{3}{2} + 2 n, x = - \frac{3}{2} + 2 n

Graus

x = 0^{\circ} + 90.59258 \dots^{\circ} n, x = 0^{\circ} - 90.59258 \dots^{\circ} n, x = 0^{\circ} + 107.19058 \dots^{\circ} n, x = 0^{\circ} - 107.19058 \dots^{\circ} n

Passos da solução

cos (π x^{2}) = 0

Soluções gerais para

cos (π x^{2}) = 0

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}

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

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

Resolver

π x^{2} = \frac{π}{2} + 2 πn : x = \frac{1}{2} + 2 n, x = - \frac{1}{2} + 2 n

π x^{2} = \frac{π}{2} + 2 πn

Dividir ambos os lados por

π

π x^{2} = \frac{π}{2} + 2 πn

Dividir ambos os lados por

π

\frac{π x ^{2}}{π} = \frac{\frac{π}{2}}{π} + \frac{2 πn}{π}

Simplificar

\frac{π x ^{2}}{π} = \frac{\frac{π}{2}}{π} + \frac{2 πn}{π}

Simplificar

\frac{π x ^{2}}{π} : x^{2}

\frac{π x ^{2}}{π}

Eliminar o fator comum:

π

= x^{2}

Simplificar

\frac{\frac{π}{2}}{π} + \frac{2 πn}{π} : \frac{1}{2} + 2 n

\frac{\frac{π}{2}}{π} + \frac{2 πn}{π}

\frac{\frac{π}{2}}{π} = \frac{1}{2}

\frac{\frac{π}{2}}{π}

Aplicar as propriedades das frações:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{π}{2 π}

Eliminar o fator comum:

π

= \frac{1}{2}

\frac{2 πn}{π} = 2 n

\frac{2 πn}{π}

Eliminar o fator comum:

π

= 2 n

= \frac{1}{2} + 2 n

x^{2} = \frac{1}{2} + 2 n

x^{2} = \frac{1}{2} + 2 n

x^{2} = \frac{1}{2} + 2 n

Para

x^{2} = f (a)

as soluções são

x = f (a), - f (a)

x = \frac{1}{2} + 2 n, x = - \frac{1}{2} + 2 n

Resolver

π x^{2} = \frac{3 π}{2} + 2 πn : x = \frac{3}{2} + 2 n, x = - \frac{3}{2} + 2 n

π x^{2} = \frac{3 π}{2} + 2 πn

Dividir ambos os lados por

π

π x^{2} = \frac{3 π}{2} + 2 πn

Dividir ambos os lados por

π

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

Simplificar

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

Simplificar

\frac{π x ^{2}}{π} : x^{2}

\frac{π x ^{2}}{π}

Eliminar o fator comum:

π

= x^{2}

Simplificar

\frac{\frac{3 π}{2}}{π} + \frac{2 πn}{π} : \frac{3}{2} + 2 n

\frac{\frac{3 π}{2}}{π} + \frac{2 πn}{π}

\frac{\frac{3 π}{2}}{π} = \frac{3}{2}

\frac{\frac{3 π}{2}}{π}

Aplicar as propriedades das frações:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{3 π}{2 π}

Eliminar o fator comum:

π

= \frac{3}{2}

\frac{2 πn}{π} = 2 n

\frac{2 πn}{π}

Eliminar o fator comum:

π

= 2 n

= \frac{3}{2} + 2 n

x^{2} = \frac{3}{2} + 2 n

x^{2} = \frac{3}{2} + 2 n

x^{2} = \frac{3}{2} + 2 n

Para

x^{2} = f (a)

as soluções são

x = f (a), - f (a)

x = \frac{3}{2} + 2 n, x = - \frac{3}{2} + 2 n

x = \frac{1}{2} + 2 n, x = - \frac{1}{2} + 2 n, x = \frac{3}{2} + 2 n, x = - \frac{3}{2} + 2 n

Gráfico

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