2.Ρص㡣һݻֳɼΣֱšÿصáص֡ӡԱӡ?Ըμϵá=ʾȵȣʱҪص㣬㵽̫ࡣ
3.дԼĿдüߡ
(1)д⣺ÿһд;(2)дСһҪݣҪӳڸ֮IJϵ;(3)⣺˵Ҫݣհ״÷Ż֣дص㣬ֱѡͼ;(4)ʽҪ۱仯һת㣬й֪ʶкϵչ 4.顱ҼԤϰЧ
ٺ鱾˼½ڿʦҪݴ⣬ЩѿЩģЩݲҪʲôط;ڶѧʦǰⶩѧ٣¶֪ʶںھ֪ʶıʣ֪ͨʶϵҪܼԱ;۸ݿαϰдԵϰ⣬ԤϰЧ ϵԤϰȡóЧĹؼ
1.ѧѧѧƵĹϵԤϰʱҪѽ϶ʱ䣬нſΣŶԤϰܣѡ1-2űѧƽԵ㣬һȫչ
2.ԤϰεĹϵԤϰθЧܽԤϰв⣬Թѧ֪ʶǧΪԤϰѶϿβ
£˷ѿñʱ䣬ӰѧϰЧ֮ҪʹԤϰзЧ棬ʧȥԤϰá һѧѧϰƪ2
1.Ԫص(ȷ,,);֪A={x,xy,lgxy},B={0,|x|,y},A=B,x+y=
2.ϴԪ֪M={y|y=x2,xR},N={y|y=x2+1,xR},MN;뼯M={(x,y)|y=x2,xR},N={(x,y)|y=x2+1,xR}MN
3.ϵӼʱǷ.
4.ںnԪصM,ӼӼǿӼǿӼĸΪļMжٸ
5.ΤͼӦ;ijС鹲10Ա,ÿٻᳪеһ,7˻ᳪ5˻,ִѡᳪͻĸһˣһһĿ,жֲͬѡ? 6.֮Ĺϵ
7.Ħ(CUA)(CUB)=CU(AB)(CUA)(CUB)=CU(AB);;
8.ӳĸ˽?ӳfABУAԪصԺBӦԪصԣļֶӦܹӳ?AmԪBnԪأfABӳжٸ? ѧѧϰ
(1)ƶƻȷѧϰĿġѧϰƻƶѧ