解決cos(-40^circ)+sin(-40^circ)=1 |Microsoft數學求解器

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0.766044443118978 + -0.6427876096865393 = 1

對題中的三角函數求值

0.1232568334324387=1

從 0.766044443118978 減去 0.6427876096865393 會得到 0.1232568334324387。

\text{false}

比較 0.1232568334324387 和 1。

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