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Popular >

sin(30)=(x/(81))

Solución

sin (3 0^{\circ}) = (\frac{x}{81})

Solución

x = \frac{81}{2}

+1

Notación decimal

x = 40.5

Pasos de solución

sin (3 0^{\circ}) = (\frac{x}{81})

Intercambiar lados

(\frac{x}{81}) = sin (3 0^{\circ})

Simplificar

sin (3 0^{\circ}) : \frac{1}{2}

sin (3 0^{\circ})

Utilizar la siguiente identidad trivial:

sin (3 0^{\circ}) = \frac{1}{2}

tabla de valores periódicos con

36 0^{\circ} n

intervalos:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

= \frac{1}{2}

\frac{x}{81} = \frac{1}{2}

Multiplicar ambos lados por

81

\frac{x}{81} = \frac{1}{2}

Multiplicar ambos lados por

81

\frac{81 x}{81} = \frac{1 \cdot 81}{2}

Simplificar

\frac{81 x}{81} = \frac{1 \cdot 81}{2}

Simplificar

\frac{81 x}{81} : x

\frac{81 x}{81}

Dividir:

\frac{81}{81} = 1

= x

Simplificar

\frac{1 \cdot 81}{2} : \frac{81}{2}

\frac{1 \cdot 81}{2}

Multiplicar los numeros:

1 \cdot 81 = 81

= \frac{81}{2}

x = \frac{81}{2}

x = \frac{81}{2}

x = \frac{81}{2}

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