Question

Tìm số đo góc \(\alpha \), biết rằng:

a) sin\(\alpha \) = 0,25

b) sin\(\alpha \) = 0,75

c) tan\(\alpha \) = 1

d) cot\(\alpha \) = 2.

Answer 1

a) \(\alpha \) = \({14^o}29'\)

b) \(\alpha \) = \({41^o}25'\)

c) \(\alpha \) = \({45^o}\)

d) \(\alpha \) = \({26^o}34'\).