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Answer 4.3:6
From Förberedande kurs i matematik 1
| a)
| \displaystyle \sin{v}=-\displaystyle \frac{\sqrt{7}}{4}\quad and \displaystyle \quad\tan{v}=-\displaystyle \frac{\sqrt{7}}{3}\,
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| b)
| \displaystyle \cos{v}=-\displaystyle \frac{\sqrt{91}}{10}\quad and \displaystyle \quad\tan{v}=-\displaystyle \frac{3}{\sqrt{91}}\,
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| c)
| \displaystyle \sin{v}=-\displaystyle \frac{3}{\sqrt{10}}\quad and \displaystyle \quad\cos{v}=-\displaystyle \frac{1}{\sqrt{10}}\,
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