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受欢迎的三角函数 >

-sec^2(x)=0

解答

- sec^{2} (x) = 0

解答

x \in R 无解

求解步骤

- sec^{2} (x) = 0

两边除以

- 1

- sec^{2} (x) = 0

两边除以

- 1

- sec^{2} (x) = 0

两边除以

- 1

\frac{- sec ^{2} ( x )}{- 1} = \frac{0}{- 1}

化简

sec^{2} (x) = 0

sec^{2} (x) = 0

使用法则

x^{n} = 0 \Rightarrow x = 0

sec (x) = 0

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

x \in R 无解

作图

流行的例子

2cos(x)+4cos(4x)=0

2 cos (x) + 4 cos (4 x) = 0

tan (θ) = \frac{24}{7}

sin(x)=0.18,0<= x<2pi

sin (x) = 0.18, 0 \leq x < 2 π

3 cos (x) = sin (x)

证明 tan(135+x)=(tan(x)-1)/(tan(x)+1)

p ro v e tan (13 5^{\circ} + x) = \frac{tan ( x ) - 1}{tan ( x ) + 1}