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受欢迎的三角函数 >

sec(x)=-(1/2)/(sqrt(3))

解答

sec (x) = - \frac{\frac{1}{2}}{3}

解答

x \in R 无解

求解步骤

sec (x) = - \frac{\frac{1}{2}}{3}

化简

- \frac{\frac{1}{2}}{3} : - \frac{3}{6}

- \frac{\frac{1}{2}}{3}

使用分式法则:

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

= - \frac{1}{2 3}

- \frac{1}{2 3}

有理化:

- \frac{3}{6}

- \frac{1}{2 3}

乘以共轭根式

\frac{3}{3}

= - \frac{1 \cdot 3}{2 3 3}

1 \cdot 3 = 3

233 = 6

233

使用根式运算法则:

a a = a

33 = 3

= 2 \cdot 3

数字相乘:

2 \cdot 3 = 6

= 6

= - \frac{3}{6}

= - \frac{3}{6}

sec (x) = - \frac{3}{6}

sec (x) \leq - 1 or sec (x) \geq 1

x \in R 无解

作图

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