4.4 Exercises

From Förberedande kurs i matematik 1

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Övning 4.4:1

För vilka vinklar \displaystyle \,v\,, där \displaystyle \,0 \leq v\leq 2\pi\,, gäller att

a) \displaystyle \sin{v}=\displaystyle \frac{1}{2} b) \displaystyle \cos{v}=\displaystyle \frac{1}{2}
c) \displaystyle \sin{v}=1 d) \displaystyle \tan{v}=1
e) \displaystyle \cos{v}=2 f) \displaystyle \sin{v}=-\displaystyle \frac{1}{2}$
g) \displaystyle \tan{v}=-\displaystyle \frac{1}{\sqrt{3}}