Mathematics, 07.03.2020 04:31 s122784
Find the exact value of sine [2 cosine Superscript negative 1 Baseline (- StartFraction StartRoot 2 EndRoot/2 EndFraction )] = nothing
Answers: 3
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![2\left [\pi-\cos^{-1}\left(\frac{1}{\sqrt{2}}\right)\right]](/tpl/images/0537/6799/360a5.png)
      ![[\because \cos^{-1}(-x)=\pi-\cos^{-1}(x), x\in [-1,1]]](/tpl/images/0537/6799/c0969.png)
![2\left [\pi-\cos^{-1}\left(\cos \frac{\pi}{4}\right)\right]](/tpl/images/0537/6799/b23c6.png)
![2\left [\pi-\frac{\pi}{4}\right]](/tpl/images/0537/6799/0951d.png)
![2\left [\frac{4\pi-\pi}{4}\right]](/tpl/images/0537/6799/c428d.png)
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Find the exact value of sine [2 cosine Superscript negative 1 Baseline (- StartFraction StartRoot 2...
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