【摘要】 利用微分中值定理证明等式时,一般直接套用或是经过简单地恒等变形,再用微分中值定理去证明。这样能够解决一些问题,但对比较复杂一点的问题就相当困难。更多还原

【Abstract】 Generally we simply make an equation to equivalent transformation, or formulate directly the mid-value theorem to prove an equation, so that several questions in differential calculus can be solved ,but it is rather difficulty to the questions which is even more complex .更多还原