tan(θ)=((2.5)/(1.5))^{1/3}

解答

tan (θ) = (\frac{2.5}{1.5})^{\frac{1}{3}}

θ = 0.87012 \dots + πn

度数

θ = 49.85462 \dots^{\circ} + 18 0^{\circ} n

求解步骤

tan (θ) = (\frac{2.5}{1.5})^{\frac{1}{3}}

使用反三角函数性质

tan (θ) = (\frac{2.5}{1.5})^{\frac{1}{3}}

tan (θ) = (\frac{2.5}{1.5})^{\frac{1}{3}}

的通解

tan (x) = a \Rightarrow x = arctan (a) + πn

θ = arctan ((\frac{2.5}{1.5})^{\frac{1}{3}}) + πn

θ = arctan ((\frac{2.5}{1.5})^{\frac{1}{3}}) + πn

以小数形式表示解

θ = 0.87012 \dots + πn

tan (x) sec^{2} (x) + tan (x) = 3 tan (x)

sin (x) = 0.809

\frac{sin ( x )}{700} = \frac{sin ( 4 5 ^{\circ} )}{497}

cos (θ) = \frac{1}{2}, 0 \leq θ \leq 4 π

sinh^{2} (x) = 2 sinh (x) cosh (x)