怎樣理解曲線的凹凸,怎樣根據(jù)導(dǎo)數(shù)畫未知函數(shù)的圖象?
怎樣理解曲線的凹凸,怎樣根據(jù)導(dǎo)數(shù)畫未知函數(shù)的圖象?
數(shù)學(xué)人氣：271 ℃時間：2020-06-19 22:20:47
優(yōu)質(zhì)解答
從中任取兩點,連此兩點的弦總在曲線的下方.進(jìn)而不難知道,在（a,b）中任意取兩個點函數(shù)在這兩點處的函數(shù)值的平均值小于這兩點的中點處的函數(shù)值.凹弧也有相仿的特點.定義：設(shè)f（x）在[a,b]上連續(xù),若對Vx1,x2∈（a,b）...
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