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Jeżeli α \alpha jest kątem ostrym i c o s α = 1 4 cos \alpha= \frac{1}{4...

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Jeżeli α \alpha jest kątem ostrym i cosα=14 cos \alpha= \frac{1}{4} , to:

c. \( \alpha<75^0 \)

b. \( \alpha=75^0 \)

a. \( \alpha>75^0 \)

d. \( \alpha=76^0 \)

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