Помогите решить уравнения 1. 3sin^2x/3+4cos^2x/3=3+ корень 3 sin x/3cosx/3
2. sin^6x + sin^4x cos^2x = sin^3 x cos3x + sinx cos^5x
3. tgx/1+tg^2x= cosx
2. sin^6x + sin^4x cos^2x = sin^3 x cos3x + sinx cos^5x
3. tgx/1+tg^2x= cosx
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