学会权方和不等式,一类最值问题得心应手
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我们称m为该不等式的权,权方和不等式的特征是分子的幂指数比分母的幂指数高1次.
上面的这个不等式不那么舒服,但在高考阶段只需要掌握二元和三元形式。二元变量的权方和不等式,用于“知和求和型”求最值,其实就是“1”的代换.
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我们称m为该不等式的权,权方和不等式的特征是分子的幂指数比分母的幂指数高1次.
上面的这个不等式不那么舒服,但在高考阶段只需要掌握二元和三元形式。二元变量的权方和不等式,用于“知和求和型”求最值,其实就是“1”的代换.