3,4,5 пожалуйста Хелп срочно!!!!!!!!!!!!!!!!!!
3. (sin α + tg α )/ tg α = 1+cos α sin α/ tg α + tg α/tg α=sin α/ (sin α/cos α) + 1= cos α+1 4. √3tg(3x/5) -1= 0 √3tg(3x/5) = 1 tg(3x/5)=1/√3 3x/5 = arctg(1/√3) 3x/5= π/6 +πn 3x= (π/6+πn) *5 x = (5π/6+5nπ)/3= 5π /18 + 5πn/3 5.