为了在计算器上计算cos（x）： 输入输入角度。 在组合框中选择度数（°）或弧度（rad）的角度类型。 按 = 按钮计算结果。

Take the inverse cosine of both sides of the equation to extract x x from inside the cosine. Simplify the right side. Tap for more steps... The cosine function is positive in the first and fourth quadrants. To find the second solution, subtract the reference angle from 2π 2 π to find the solution in the fourth quadrant. Simplify 2π− π 3 2 π - π 3.

What is the general solution for cos (x)=0.5 ?

Calculate the value of the cos of 0.5 ° To enter an angle in radians, enter cos (0.5RAD) cos (0.5 °) = 0.999961923064171 Cosine the trigonometric function that is equal to the ratio of the side ...

2024年10月22日 · cos是余弦函数的缩写，表示的是在直角三角形中，邻边与斜边的比值。 在单位圆中，余弦值表示的是角度与x轴正方向的夹角所对应的点的x坐标。 计算cos0.5，我们首先需要将角度转换为弧度。

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Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…

2025年3月22日 · 一、引言. 高考的比大小题目中，除了 e^x 和 \ln{x} ，出现较多的就是 \sin{x},\cos{x},\tan{x} 这几个 三角函数 。 导数大题中，也有可能出现这些函数。因此，我们需要研究这几个函数的性质，其中， x\in(0,\frac{\pi}{2}) 是研究这几个函数性质的重要区间。 根据三角函数的 周期性 和 对称性 ，其他区间上的 ...