3*2sinxcosx+2sinx+2sinx*sinx=0sinx(6cosx+2+2sinx)=0sinx=0或6cosx+2+2sinx=01.sinx=02.6sin(90-x)+2+2cos(90-x)=01+cos(90-x)+3sin(90-x)=02cos^2(45-x/2)+6sin(45-x/2)cos(45-x/2)=0cos(45-x/2)(cos(45-x/2)+3si...