1.5两个重要极限 sIn 1. im =1 lim inu(x) x→>0x l(x)→>0 2.lim(1+-)=e im[1+-、J=e x→00 l(x)->∞ u(x) lim(1+u)"=e lim [1+w(x) w(x) = e →0 w(x)→>01.5 两个重要极限 1 sin lim 0 = → x x x 1. + = e → x x x ) 1 2. lim(1 1 ( ) sin ( ) lim ( ) 0 = → u x u x u x + = e → ( ) ( ) ] ( ) 1 lim [1 u x u x u x + = e → u u u 1 0 lim(1 ) + = e → ( ) 1 ( ) 0 lim [1 ( )]w x w x w x