Как то так)))
<span>sin3x+sin5x+2sin²(x/2)=1</span>
<span>2sin4x•cosx=1-2sin²(x/2)</span>
<span>2sin4x•cosx=cosx</span>
<span>cosx•(2sin4x-1)=0</span>
<span>1) cosx=0 => x=π/2+πn</span>
<span>2) sin4x=½ => 4x=(-1)^n•π/6+πn => x=(-1)^n•π/24+(π/4)•n</span>
Y=0,2x+11
x=30, y=17
x=40, y=19
x=50, y=21
y=-0,1x+26
x=30, y=23
x=40, y=22
x=50, y=21
x=50, y=21 - общая точка
<h2>Решить уравнение.</h2>
-3,1-2,8-4,1-2/1/3+5/6= -16+5/6=-15 1/6