1 习题1—1 解答 1. 设yxxyyxf),(,求),(1),,(),1,1(),,(yxfyxxyfyxfyxf 解yxxyyxf),(;xxyyyxfyxyxxyfxyxyyxf222),(1;),(;1)1,1( 2. 设yxyxflnln),(,证明:),(),(),(),(),(vyfuyfvxfuxfuvxyf ),(),(),(),(lnlnlnlnlnlnlnln)ln)(lnln(ln)ln(...
时间:2025-02-22 11:34栏目:行业资料