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受欢迎的三角函数 >

sec(x)=2,0<= x<= 2pi

解答

sec (x) = 2, 0 \leq x \leq 2 π

解答

x = \frac{π}{3}, x = \frac{5 π}{3}

+1

度数

x = 6 0^{\circ}, x = 30 0^{\circ}

求解步骤

sec (x) = 2, 0 \leq x \leq 2 π

sec (x) = 2

的通解

sec (x)

周期表（周期为

2 πn

）：

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} sec (x) 1 \frac{2 3}{3} 22 Undefined - 2 - 2 - \frac{2 3}{3} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} sec (x) - 1 - \frac{2 3}{3} - 2 - 2 Undefined 22 \frac{2 3}{3}

x = \frac{π}{3} + 2 πn, x = \frac{5 π}{3} + 2 πn

x = \frac{π}{3} + 2 πn, x = \frac{5 π}{3} + 2 πn

在

0 \leq x \leq 2 π

范围内的解

x = \frac{π}{3}, x = \frac{5 π}{3}

作图

流行的例子

sin(x)=-(sqrt(2))/2

sin (x) = - \frac{2}{2}

cos (4 π)

cot (\frac{7 π}{4})

cot (\frac{π}{4})

sec (13 5^{\circ})