tan(t)= 3/4

解答

tan (t) = \frac{3}{4}

t = 0.64350 \dots + πn

度数

t = 36.86989 \dots^{\circ} + 18 0^{\circ} n

求解步骤

tan (t) = \frac{3}{4}

使用反三角函数性质

tan (t) = \frac{3}{4}

tan (t) = \frac{3}{4}

的通解

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

t = arctan (\frac{3}{4}) + πn

t = arctan (\frac{3}{4}) + πn

以小数形式表示解

t = 0.64350 \dots + πn

2 cos (θ) - 2 sin (2 θ) = 0

tan (x) = \frac{5}{3} sin (x) [0.2 π]

4 sin^{2} (x) - cos^{2} (x) = 0

cos (\frac{π}{2} - x) = cos (\frac{π}{2}) - cos (x)

- 3 cos (\frac{π}{2} - θ) = tan (θ)