тригонометричні нерівності

(arcsin1/2+2πn; π-arcsin1/2+

+2πn), n∊Z

(arccos1/2+2πn; -arccos1/2+

+2πn), n∊Z

[π/6+πn; 5π/6+πn], n∊Z

[-π/6+2πn; π/6+2πn], n∊Z

(-arcsin√2/2+2πn;

π-arcsin√2/2+2πn), n∊Z

(arccos√2/2+2πn;

π-arccos√2/2+2πn), n∊Z

(-3π/4+2πn; -π/4+2πn), n∊Z

[-π/4+2πn; -3π/4+2πn], n∊Z

(-arcsin(-2/5)+2πn;

π+arcsin(-2/5)+2πn), n∊Z

(-π+arccos2/5+2πn;

π-arccos2/5+2πn), n∊Z

[-arcsin2/5+2πn; π+arcsin2/5+

+2πn], n∊Z

(π-arccos2/5+2πn;

-(π-arccos2/5)+2πn), n∊Z

[-arcsin(-2/3)+2πn;

π+arcsin(-2/3)+2πn], n∊Z

(arccos(-2/3)+2πn;

-arccos(-2/3)+2πn), n∊Z

[-arcsin2/3+2πn;

π+arcsin2/3+2πn], n∊Z

[arccos2/3+2πn;

π-arccos2/3+2πn], n∊Z

(-arcsin3/5+2πn;

π+arcsin3/5+2πn), n∊Z

(-arccos3/5+2πn; arccos3/5+

+2πn), n∊Z

[arcsin3/5+2πn;

π-arcsin3/5+2πn], n∊Z

(arccos3/5+2πn;

2π-arccos3/5+2πn), n∊Z

(-arcsin5/7+2πn; arcsin5/7+

+2πn), n∊Z

(-arccos5/7+2πn; arccos5/7+

+2πn), n∊Z

[arcsin5/7+2πn;

π-arcsin5/7+2πn], n∊Z

(arccos5/7+2πn;

2π-arccos5/7+2πn), n∊Z