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受欢迎的三角函数 >

cos(x)=0.12

解答

cos (x) = 0.12

解答

x = 1.45050 \dots + 2 πn, x = 2 π - 1.45050 \dots + 2 πn

+1

度数

x = 83.10789 \dots^{\circ} + 36 0^{\circ} n, x = 276.89210 \dots^{\circ} + 36 0^{\circ} n

求解步骤

cos (x) = 0.12

使用反三角函数性质

cos (x) = 0.12

cos (x) = 0.12

的通解

cos (x) = a \Rightarrow x = arccos (a) + 2 πn, x = 2 π - arccos (a) + 2 πn

x = arccos (0.12) + 2 πn, x = 2 π - arccos (0.12) + 2 πn

x = arccos (0.12) + 2 πn, x = 2 π - arccos (0.12) + 2 πn

以小数形式表示解

x = 1.45050 \dots + 2 πn, x = 2 π - 1.45050 \dots + 2 πn

作图

流行的例子

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