2006ȳɿѧѵˣ
ѵ8 ż뵥()
ĵԡżǸ߿صȵ֮һرʵӦøͻ.Ҫѧʽ⣬ջγӦʶ.
ѵų
()֪żf(x)(0+)Ϊf(2)=0,ⲻʽflog2(x2+5x+4)ݡ0.
̽
1֪溯f(x)Ƕ(33)ϵļ㲻ʽf(x3)+f(x23)<0,費ʽ⼯ΪAB=A{x|1x },g(x)=3x2+3x4(xB)ֵ.
Ϣ>>>>>>>>>>>>>>
ĵԡżǸ߿صȵ֮һرʵӦøͻ.Ҫѧʽ⣬ջγӦʶ.
ѵų
()֪żf(x)(0+)Ϊf(2)=0,ⲻʽflog2(x2+5x+4)ݡ0.
̽
1֪溯f(x)Ƕ(33)ϵļ㲻ʽf(x3)+f(x23)<0,費ʽ⼯ΪAB=A{x|1x },g(x)=3x2+3x4(xB)ֵ.
Ϣ>>>>>>>>>>>>>>
Ƽ
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