积分第二中值定理
内容
若g,(f·g)均在[a,b]上Riemann可积且f(x)在[a,b]上单调,则存在[a,b]上的点ξ使
退化态的几何意义
令g(x)=1,则原公式可化为:存在[a,b]上的点ξ使
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