资源描述
S S s: 2tbt?v M V 3q 3I k k k5 S S s s s i s5 i Y sAs5 k5 ( r k5 s5B k5 pK 5ss ! 0a, b , n x b a, x, x b axx n- n 21 0, 11 21 =+=+= p n x lip n n x lim 2 2 2 sincos 11 2 lim 2 x)ex( x x x n + !f ()f x uW b ,a 10 OB b ,ax i b ,ay P )()( xfyf L ( )0z LZ_? LZ_ HV z _/AwL L o s9PH s
展开阅读全文