1)вычислить Sin(p/48)*cos(p/48)*cos(p/24)*cos(p/12) 2)решите уравнение 26 sinx * cos x -cos4x+7=0
3)sin^2(2x-p/6)=3/4
4)sin^2(x/2)=cos^2(7x/2)
3)sin^2(2x-p/6)=3/4
4)sin^2(x/2)=cos^2(7x/2)
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