Question

Тригонометрия, неравенства
sin2x+ctgx≤2

Answer 1

cot(s) + 2 sin(x) cos(x)<=2

cos(s)\/sin(s) + sin(2 x)<=2

-1\/2 csc(s) (-cos(s - 2 x) + cos(s + 2 x) - 2 cos(s))<=2