1) sinx = 0 a) ℼ\2+2ℼn, n∈Z b) ℼ\2+ℼn, n∈Z c) ℼn, n∈Z d) 2ℼn, n∈Z 2) tgx = ⍺ a) -arctg⍺ +2ℼn, n∈Z b) ±arcctg⍺ +ℼn, n∈Z c) arctg⍺ +ℼn, n∈Z d) arctg⍺ +2ℼn, n∈Z 3) arcsin √3/2 a) ℼ b) ℼ/3 c) 3ℼ/2 d) -ℼ/3 4) cosx = 1/2 a) ℼ/3 + ℼn, n∈Z b) (-1)n * ℼ/6 + ℼn, n∈Z c) ± ℼ/3 + 2ℼn, n∈Z d) (-1)n * ℼ/6 + 2ℼn, n∈Z 5) ctg 120º a) √3/3 b) -√3 c) -√3/2 d) -√3/3 6) ctg2x = 1 a) ℼ/8 + ℼn/2, n∈Z b) ℼ/12 + ℼn/2, n∈Z c) ℼ/4 + ℼn, n∈Z d) ±ℼ/4 + ℼn, n∈Z 7) cosx = -1 a) ℼ + 2ℼn, n∈Z b) ±ℼ+ 2ℼn, n∈Z c) ±ℼ/2 + ℼn, n∈Z d) 2ℼn, n∈Z 8) tg 90° a) √3 b) ⏤ c) 1 d) 0 9) sinx = -√3/2 a) (-1)n * ℼ/6 + ℼn, n∈Z b) (-1)n * 2ℼ/3 + ℼn, n∈Z c) (-1)n+1 * ℼ/3 + ℼn, n∈Z d) (-1)n-1 * ℼ/3 + ℼn, n∈Z 10) sinx = -1 a) 3ℼ/2 + 2ℼn, n∈Z b) -ℼ/2 + 2ℼn, n∈Z c) ℼ/2 + 2ℼn, n∈Z d) ℼn, n∈Z

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