发布网友 发布时间:2024-10-24 13:15
共1个回答
热心网友 时间:1天前
争冠
YZ <= 1 /(4A)*^ 2 + A * z按^ 2
(2根)的xy <= A * X ^ 2 +1 /(2A)* Y轴^ 2
(2的平方根)XY + YZ <= A * X ^ 2 +1 /(2A)*^ 2 +1 /(4A)* Y轴^ 2 + A * z按^ 2
= A * X ^ 2 +3 /(4A)*^ 2 + A * z按^ 2
所以A = 3 /(4A)即根= 3/2
然后(2根)XY + YZ <= A * X ^ 2 +1 /(2A)*^ 2 +1 /(4A)*^ 2 + A * z按^ 2
= A * X ^ 2 +3 /(4A)*^ 2 + A * z按^ 2 = A =根3/2