1)2(√3/2 sin2х+1/2cos2х )<1/2 2) 2cos2х+sin2х>tgx

Question

1)2(√3/2 sin2х+1/2cos2х )<1/2<br> 2) 2cos2х+sin2х>tgx

Answer 1

2*60*2+60*2x=1/2.....................