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受欢迎的三角函数 >

sin(x/5)=(sqrt(2))/2

解答

sin (\frac{x}{5}) = \frac{2}{2}

解答

x = \frac{5 π}{4} + 10 πn, x = \frac{15 π}{4} + 10 πn

+1

度数

x = 22 5^{\circ} + 180 0^{\circ} n, x = 67 5^{\circ} + 180 0^{\circ} n

求解步骤

sin (\frac{x}{5}) = \frac{2}{2}

sin (\frac{x}{5}) = \frac{2}{2}

的通解

sin (x)

周期表（周期为

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}

\frac{x}{5} = \frac{π}{4} + 2 πn, \frac{x}{5} = \frac{3 π}{4} + 2 πn

\frac{x}{5} = \frac{π}{4} + 2 πn, \frac{x}{5} = \frac{3 π}{4} + 2 πn

解

\frac{x}{5} = \frac{π}{4} + 2 πn : x = \frac{5 π}{4} + 10 πn

\frac{x}{5} = \frac{π}{4} + 2 πn

在两边乘以

5

\frac{x}{5} = \frac{π}{4} + 2 πn

在两边乘以

5

\frac{5 x}{5} = 5 \cdot \frac{π}{4} + 5 \cdot 2 πn

化简

\frac{5 x}{5} = 5 \cdot \frac{π}{4} + 5 \cdot 2 πn

化简

\frac{5 x}{5} : x

\frac{5 x}{5}

数字相除:

\frac{5}{5} = 1

= x

化简

5 \cdot \frac{π}{4} + 5 \cdot 2 πn : \frac{5 π}{4} + 10 πn

5 \cdot \frac{π}{4} + 5 \cdot 2 πn

乘

5 \cdot \frac{π}{4} : \frac{5 π}{4}

5 \cdot \frac{π}{4}

分式相乘:

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

= \frac{π 5}{4}

= \frac{5 π}{4} + 5 \cdot 2 πn

数字相乘:

5 \cdot 2 = 10

= \frac{5 π}{4} + 10 πn

x = \frac{5 π}{4} + 10 πn

x = \frac{5 π}{4} + 10 πn

x = \frac{5 π}{4} + 10 πn

解

\frac{x}{5} = \frac{3 π}{4} + 2 πn : x = \frac{15 π}{4} + 10 πn

\frac{x}{5} = \frac{3 π}{4} + 2 πn

在两边乘以

5

\frac{x}{5} = \frac{3 π}{4} + 2 πn

在两边乘以

5

\frac{5 x}{5} = 5 \cdot \frac{3 π}{4} + 5 \cdot 2 πn

化简

\frac{5 x}{5} = 5 \cdot \frac{3 π}{4} + 5 \cdot 2 πn

化简

\frac{5 x}{5} : x

\frac{5 x}{5}

数字相除:

\frac{5}{5} = 1

= x

化简

5 \cdot \frac{3 π}{4} + 5 \cdot 2 πn : \frac{15 π}{4} + 10 πn

5 \cdot \frac{3 π}{4} + 5 \cdot 2 πn

5 \cdot \frac{3 π}{4} = \frac{15 π}{4}

5 \cdot \frac{3 π}{4}

分式相乘:

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

= \frac{3 π 5}{4}

数字相乘:

3 \cdot 5 = 15

= \frac{15 π}{4}

5 \cdot 2 πn = 10 πn

5 \cdot 2 πn

数字相乘:

5 \cdot 2 = 10

= 10 πn

= \frac{15 π}{4} + 10 πn

x = \frac{15 π}{4} + 10 πn

x = \frac{15 π}{4} + 10 πn

x = \frac{15 π}{4} + 10 πn

x = \frac{5 π}{4} + 10 πn, x = \frac{15 π}{4} + 10 πn

作图

流行的例子

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