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受欢迎的三角函数 >

0.175=0.34sin(93.4x)

解答

0.175 = 0.34 sin (93.4 x)

解答

x = \frac{0.54066 \dots}{93.4} + \frac{2 πn}{93.4}, x = \frac{π}{93.4} - \frac{0.54066 \dots}{93.4} + \frac{2 πn}{93.4}

+1

度数

x = 0.33166 \dots^{\circ} + 3.85438 \dots^{\circ} n, x = 1.59552 \dots^{\circ} + 3.85438 \dots^{\circ} n

求解步骤

0.175 = 0.34 sin (93.4 x)

交换两边

0.34 sin (93.4 x) = 0.175

在两边乘以

1000

0.34 sin (93.4 x) = 0.175

To eliminate decimal points, multiply by 10 for every digit after the decimal pointThere are

3

digits to the right of the decimal point, therefore multiply by

1000

0.34 sin (93.4 x) \cdot 1000 = 0.175 \cdot 1000

整理后得

340 sin (93.4 x) = 175

340 sin (93.4 x) = 175

两边除以

340

340 sin (93.4 x) = 175

两边除以

340

\frac{340 sin ( 93.4 x )}{340} = \frac{175}{340}

化简

sin (93.4 x) = \frac{35}{68}

sin (93.4 x) = \frac{35}{68}

使用反三角函数性质

sin (93.4 x) = \frac{35}{68}

sin (93.4 x) = \frac{35}{68}

的通解

sin (x) = a \Rightarrow x = arcsin (a) + 2 πn, x = π - arcsin (a) + 2 πn

93.4 x = arcsin (\frac{35}{68}) + 2 πn, 93.4 x = π - arcsin (\frac{35}{68}) + 2 πn

93.4 x = arcsin (\frac{35}{68}) + 2 πn, 93.4 x = π - arcsin (\frac{35}{68}) + 2 πn

解

93.4 x = arcsin (\frac{35}{68}) + 2 πn : x = \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

93.4 x = arcsin (\frac{35}{68}) + 2 πn

两边除以

93.4

93.4 x = arcsin (\frac{35}{68}) + 2 πn

两边除以

93.4

\frac{93.4 x}{93.4} = \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

化简

x = \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

x = \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

解

93.4 x = π - arcsin (\frac{35}{68}) + 2 πn : x = \frac{π}{93.4} - \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

93.4 x = π - arcsin (\frac{35}{68}) + 2 πn

两边除以

93.4

93.4 x = π - arcsin (\frac{35}{68}) + 2 πn

两边除以

93.4

\frac{93.4 x}{93.4} = \frac{π}{93.4} - \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

化简

x = \frac{π}{93.4} - \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

x = \frac{π}{93.4} - \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

x = \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}, x = \frac{π}{93.4} - \frac{arcsin ( \frac{35}{68} )}{93.4} + \frac{2 πn}{93.4}

以小数形式表示解

x = \frac{0.54066 \dots}{93.4} + \frac{2 πn}{93.4}, x = \frac{π}{93.4} - \frac{0.54066 \dots}{93.4} + \frac{2 πn}{93.4}

作图

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