Решить уравнения (очень-очень нужно): 

 

1) sin4x=3cos2x

2) cos3x+sin2x-sin4x=0

3) sin5x*cos3x-sin6x*cos2x=0

4) 3sinx-2cos^x=0

5) sin^2x-3sinx*cosx+2cos^2x=0

 

 

 

 

 

 

 

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