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Sin2 x=cos x

Решениеsin2x = cosx2sinx*cosx - cosx = 0cosx*(2sinx - 1 ) = 01) cosx = 0 x = π/2 + πk, k ∈ Z2)  2sinx - 1 = 0sinx = 1/2x = (-1)^n* arcsin(1/2) + πn, n ∈ Zx = (-1)^n* (π/6) + πn, n ∈ Z