October 2021 2 4 Report
ПОМОГИТЕ ПОЖАЛУЙСТА СРОЧНО с тригонометрическими неравенствами!!! (с рисунком если получится)
1) cos(x + π/3) ≤ √3/2

2) √2sin(x - π/4) + 1 > 0

3) ctg(-π/3 - x/2) ≤ √3

4) √3sin2x + cos2x < -√2

5) cos^2 x - sin^2 x < √2/2

6) ctg^2 2x - 3ctg2x + 2 ≥ 0
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