导数几何意义课件.ppt

文档介绍：导数的几何意义(选修2-2)导数的定义:“形”结合“数”引入导数涉及到的步骤:Backdrops:-Thesearefullsizedbackdrops,justscalethemup!-CanbeCopy-PastedoutofTemplatesforuseanywhere!TitleBackdropSlideBackdropPrintBackdrop的几何意义:Backdrops:-Thesearefullsizedbackdrops,justscalethemup!-CanbeCopy-PastedoutofTemplatesforuseanywhere!TitleBackdropSlideBackdropPrintBackdrop趋近于点P时,割线PP1趋近于确定位置的直线PQ,称为点P处的切线。切线定义:导数的几何意义:探究:圆的切线的定义:直线和圆有惟一公共点时,该直线叫做圆的切线曲线的切线的定义:当点P1趋近于点P时,割线PP1趋近于确定位置的直线PQ,称为点P处的切线。直线和曲线有唯一公共点时,该直线叫做曲线的切线Backdrops:-Thesearefullsizedbackdrops,justscalethemup!-CanbeCopy-PastedoutofTemplatesforuseanywhere!TitleBackdropSlideBackdropPrintBackdrop