September 2018 1 26 Report
1. Kat α jest ostry i sin α = ¼. Wowczas

a) cos α<¾ b) cos α=¾ c) cos α=√13/4
d) cos α>√13/4
i dlaczego?


2. Kat α jest katem ostrym i tg α=1/2. Jaki warunek spelnia kat α ?

a) α<30° b) α=30° c) α=60° d)α>60°
i dlaczego?

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