1. Sin(x-pi/3)-1/2=0 2. 1/корень3 Cosx=1/2 3. tgx-корень3=0 4. Cos2x+5Sinx-3=0 5. 5Sinx+3Sin2x=0 6. 5Sin^2 x+SinxCosx=2Cos^2x-1
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