[math] \frac{sin(x+\frac{\pi}{4})}{sinx} + \frac{cos(x-\frac{\pi}{4})}{cosx}=\sqrt{2}+\frac{\sqrt{2}}{sin2x}[/math]
sveyus
- Target Group (Age)
- 15 – 18
- Language
- Swedish / Svenskaā€ˇ
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