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Svar 4.2:3

Version från den 2 april 2008 kl. 14.47; Oskar (Diskussion | bidrag)

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a)	\displaystyle -1	b)	\displaystyle 1	c)	\displaystyle 0
d)	\displaystyle 0	e)	\displaystyle \displaystyle \frac{1}{\sqrt{2}}	f)	\displaystyle \displaystyle \frac{\sqrt{3}}{2}