Lektion 3 - Fasta värden
En halv kvadrat
- [math]\displaystyle{ \sin 45 = \frac{1}{\sqrt{2}} }[/math]
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- [math]\displaystyle{ \cos 45 = \frac{1}{\sqrt{2}} }[/math]
En halv liksidig triangel
- [math]\displaystyle{ \sin 60 = \frac{\sqrt{3}}{2} = \cos 30 }[/math]
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- [math]\displaystyle{ \sin 30 = \frac{1}{2} = \cos 60 }[/math]
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- [math]\displaystyle{ \tan 30 = \frac{1}{\sqrt{3}} }[/math]
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- [math]\displaystyle{ \tan 60 = {\sqrt{3} }[/math]
