wf715

ÕªÒª£º À­¸ñÀÊÈÕÖÐÖµ¶¨Àí£ºÈôº¯Êý $f(x)$ ÔÚ $[a, b]$ ÉÏÁ¬Ðø£¬ÔÚ $(a, b)$ ÉÏ¿É΢£¬ÔòÔÚ $(a, b)$ ÖбØÓÐÒ»µã $\xi$ ʹµÃ $f'(\xi) = \dfrac{f(b) - f(a)}{b - a}$£® ¼¸ºa56爆大奖在线娱乐âÒ壺Èôº¯ÊýÔÚ $[a, b]$ ÉÏÁ¬Ðø£¬ÔÚ $(a, b)$ ÔĶÁÈ«ÎÄ