1) sin^2x-3sinx=0
sinx(sinx-3)=0
sinx=0 sinx=3
x=pn /
2)10cos^2x+3cosx=1
cosx(10cosx+3)=1
cosx=1 10cosx=-2
x=2pn cosx=-1/5
x=+_arccos1/5+2pn
1) sin^2x-3sinx=0
sinx(sinx-3)=0
sinx=0 sinx=3
x=pn /
2)10cos^2x+3cosx=1
cosx(10cosx+3)=1
cosx=1 10cosx=-2
x=2pn cosx=-1/5
x=+_arccos1/5+2pn