Mg*sin(α)-mg*sin(α)<=Mg*cos(α)*μ+mg*cos(α)*μmg*sin(α)-Mg*sin(α)<=Mg*cos(α)*μ+mg*cos(α)*μ*****************************************************(M-m)*sin(α)<=(M+m)*cos(α)*μ(m-M)*sin(α)<=(M+m)*cos(α)*μ*****************************************************(M-m)*tg(α)<=(M+m)*μ(m-M)*tg(α)<=(M+m)*μ*****************************************************M*(tg(α)-μ)<=m*(μ+tg(α))m*(tg(α)-μ)<=M*(μ+tg(α))*****************************************************M*(1-0,2)<=m*(0,2+1)m*(1-0,2)<=M*(0,2+1)*****************************************************M*0,8<=m*1,2m*0,8<=M*1,2*****************************************************M*2/3<=mm<=M*1,5*****************************************************M*2/3 <= m <= M*1,5