sin x > 1
cos x ≤ 1
sin 2x < 2
sin 2x > -2
arctg x ≤ -ϖ/2
arctg x < -ϖ/2
arcsin x ≤ -ϖ/2
sin x ≥ -1
arccos x ≥ ϖ
arcsin x > ϖ/2
