22●øåøèìè æîê ( sinx+sin2x=2 )
22●æàóàáû æîê ( sinx+cos2x=2 )
220●1; 3/2 |ó=2sinx+cos2x, [0; π|
220●12 ( x+y, xlgy=2 x y=20)
220●–π/4+2πn≤x≤5π/4+2πn, n*Z |2sinx+√2≥0|
220●π/2+πk, k*Z (sin2x+2)cosx=0
220●π/2+πn, ±π/6+πk,k*Z |2cosxcos2x–cosx=0|
220●(–1)êπ/6+πê,ê*Z;πn, n*Z |2sin²x–sinx=0|
220●π/2+πn,n*Z (–1)k+1 π/4+πk,k*Z |sin2x+√2cosx=0|
220●π/2+πk, k*Z
220●(–1)ï+1π/4+πn