October 2021 0 3 Report
пожалуйста помогите(( Решите уравнения: 1. 6sin^2x-3sinx*cosx-cos^2x=1 2.5sin^2x+3sinx*cosx-2cos^2x=3 3.cos^2x-cos^2 2x+cos^2 3x-cos^2 4x=0 4.sin^2 3x+sin^2 4x +sin^2 6x+sin^2 7x=2
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