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Popular Trigonometria >

tan(25)=cot(2x+5)

Solução

tan (2 5^{\circ}) = cot (2 x + 5)

Solução

x = - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

+1

Radianos

x = - \frac{5}{2} + \frac{13 π}{72} + \frac{π}{2} n

Passos da solução

tan (2 5^{\circ}) = cot (2 x + 5)

Trocar lados

cot (2 x + 5) = tan (2 5^{\circ})

Aplique as propriedades trigonométricas inversas

cot (2 x + 5) = tan (2 5^{\circ})

Soluções gerais para

cot (2 x + 5) = tan (2 5^{\circ})

cot (x) = a \Rightarrow x = arccot (a) + 18 0^{\circ} n

2 x + 5 = arccot (tan (2 5^{\circ})) + 18 0^{\circ} n

2 x + 5 = arccot (tan (2 5^{\circ})) + 18 0^{\circ} n

Resolver

2 x + 5 = arccot (tan (2 5^{\circ})) + 18 0^{\circ} n : x = - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

2 x + 5 = arccot (tan (2 5^{\circ})) + 18 0^{\circ} n

Simplificar

arccot (tan (2 5^{\circ})) + 18 0^{\circ} n : 6 5^{\circ} + 18 0^{\circ} n

arccot (tan (2 5^{\circ})) + 18 0^{\circ} n

arccot (tan (2 5^{\circ})) = 6 5^{\circ}

arccot (tan (2 5^{\circ}))

Reeecreva usando identidades trigonométricas:

tan (2 5^{\circ}) = cot (6 5^{\circ})

tan (2 5^{\circ})

cot (9 0^{\circ} - x) = tan (x)

= cot (9 0^{\circ} - 2 5^{\circ})

= cot (6 5^{\circ})

= arccot (cot (6 5^{\circ}))

Use the inverse trig property:

6 5^{\circ}

arccot (cot (6 5^{\circ}))

Para

0 < x < 18 0^{\circ}

,

a rcco t (co t (x)) = x

0 < 6 5^{\circ} < 18 0^{\circ}

= 6 5^{\circ}

= 6 5^{\circ}

= 6 5^{\circ} + 18 0^{\circ} n

2 x + 5 = 6 5^{\circ} + 18 0^{\circ} n

Mova

5

para o lado direito

2 x + 5 = 6 5^{\circ} + 18 0^{\circ} n

Subtrair

5

de ambos os lados

2 x + 5 - 5 = 6 5^{\circ} + 18 0^{\circ} n - 5

Simplificar

2 x = 6 5^{\circ} + 18 0^{\circ} n - 5

2 x = 6 5^{\circ} + 18 0^{\circ} n - 5

Dividir ambos os lados por

2

2 x = 6 5^{\circ} + 18 0^{\circ} n - 5

Dividir ambos os lados por

2

\frac{2 x}{2} = \frac{6 5 ^{\circ}}{2} + \frac{18 0 ^{\circ} n}{2} - \frac{5}{2}

Simplificar

\frac{2 x}{2} = \frac{6 5 ^{\circ}}{2} + \frac{18 0 ^{\circ} n}{2} - \frac{5}{2}

Simplificar

\frac{2 x}{2} : x

\frac{2 x}{2}

Dividir:

\frac{2}{2} = 1

= x

Simplificar

\frac{6 5 ^{\circ}}{2} + \frac{18 0 ^{\circ} n}{2} - \frac{5}{2} : - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

\frac{6 5 ^{\circ}}{2} + \frac{18 0 ^{\circ} n}{2} - \frac{5}{2}

Agrupar termos semelhantes

= - \frac{5}{2} + \frac{18 0 ^{\circ} n}{2} + \frac{6 5 ^{\circ}}{2}

\frac{6 5 ^{\circ}}{2} = 32. 5^{\circ}

\frac{6 5 ^{\circ}}{2}

Aplicar as propriedades das frações:

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

= \frac{234 0 ^{\circ}}{36 \cdot 2}

Multiplicar os números:

36 \cdot 2 = 72

= 32. 5^{\circ}

= - \frac{5}{2} + \frac{18 0 ^{\circ} n}{2} + 32. 5^{\circ}

Agrupar termos semelhantes

= - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

x = - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

x = - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

x = - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

x = - \frac{5}{2} + 32. 5^{\circ} + \frac{18 0 ^{\circ} n}{2}

Gráfico

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