三角形ABC中必然满足π/3
问题描述:
三角形ABC中必然满足π/3
答
(aA +bB+ cC)/(a+ b+ +c)是某个三角形三个角的标准加权平均值,故三角形ABC中必然满足π/3≤(aA +bB+ cC)/(a+ b+ +c)
三角形ABC中必然满足π/3
(aA +bB+ cC)/(a+ b+ +c)是某个三角形三个角的标准加权平均值,故三角形ABC中必然满足π/3≤(aA +bB+ cC)/(a+ b+ +c)