求解 cos(-40^circ)+sin(-40^circ)=1 | Microsoft Math Solver

跳到主要内容

验证

不成立

Tick mark Image

测验

5 道与此类似的题目:

来自 Web 搜索的类似问题

https://socratic.org/questions/how-do-you-calculate-3-cos14-circ-isin14-circ-4

https://socratic.org/questions/how-do-you-express-the-complex-number-in-rectangular-form-12-cos-60-i-sin-60

https://socratic.org/questions/how-do-you-find-the-square-root-of-16-cos60-isin60

https://socratic.org/questions/how-do-i-convert-the-polar-coordinates-3-cos-210-circ-i-sin-210-circ-into-rectan

https://socratic.org/questions/how-do-you-find-the-magnitude-and-direction-angle-of-the-vector-v-3-cos60-circi-

https://socratic.org/questions/how-do-you-find-2-cos-120-circ-i-sin-120-circ-5-using-the-de-moivre-s-theorem

共享

已复制到剪贴板

0.766044443118978 + -0.6427876096865393 = 1

对题中的三角函数求值

0.1232568334324387=1

将 0.766044443118978 减去 0.6427876096865393，得到 0.1232568334324387。

\text{false}

比较 0.1232568334324387 和 1。

示例

二次方程式