ctg α = ±√(1 - sin²α)/sin α = ±√(1 - (1/2)²)/(1/2) = ±(√3/2)/(1/2) = ±√3
tg α = ±√(1 - cos²α)/cos α = ±√(1 - (√2/2)²)/(√2/2) = ±(√2/2)/(√2/2)) = ±1
решение смотри на фото
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ctg α = ±√(1 - sin²α)/sin α = ±√(1 - (1/2)²)/(1/2) = ±(√3/2)/(1/2) = ±√3
tg α = ±√(1 - cos²α)/cos α = ±√(1 - (√2/2)²)/(√2/2) = ±(√2/2)/(√2/2)) = ±1
Verified answer
решение смотри на фото