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受欢迎的三角函数 >

21=3225sin(x)+9.832*320.5

解答

21 = 3 \cdot 2 \cdot 25 sin (x) + 9.8 \cdot 3 \cdot 2 \cdot 3 \cdot 2 \cdot 0.5

解答

x \in R 无解

求解步骤

21 = 3 \cdot 2 \cdot 25 sin (x) + 9.8 \cdot 3 \cdot 2 \cdot 3 \cdot 2 \cdot 0.5

交换两边

3 \cdot 2 \cdot 25 sin (x) + 9.8 \cdot 3 \cdot 2 \cdot 3 \cdot 2 \cdot 0.5 = 21

数字相乘:

3 \cdot 2 \cdot 25 = 150

150 sin (x) + 3 \cdot 2 \cdot 3 \cdot 2 \cdot 0.5 \cdot 9.8 = 21

数字相乘:

9.8 \cdot 3 \cdot 2 \cdot 3 \cdot 2 \cdot 0.5 = 176.4

150 sin (x) + 176.4 = 21

将

176.4

到右边

150 sin (x) + 176.4 = 21

两边减去

176.4

150 sin (x) + 176.4 - 176.4 = 21 - 176.4

化简

150 sin (x) = - 155.4

150 sin (x) = - 155.4

两边除以

150

150 sin (x) = - 155.4

两边除以

150

\frac{150 sin ( x )}{150} = \frac{- 155.4}{150}

化简

\frac{150 sin ( x )}{150} = \frac{- 155.4}{150}

化简

\frac{150 sin ( x )}{150} : sin (x)

\frac{150 sin ( x )}{150}

数字相除:

\frac{150}{150} = 1

= sin (x)

化简

\frac{- 155.4}{150} : - 1.036

\frac{- 155.4}{150}

使用分式法则:

\frac{- a}{b} = - \frac{a}{b}

= - \frac{155.4}{150}

数字相除:

\frac{155.4}{150} = 1.036

= - 1.036

sin (x) = - 1.036

sin (x) = - 1.036

sin (x) = - 1.036

- 1 \leq sin (x) \leq 1

x \in R 无解

作图

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