若正数a,b满足aˆ2/(aˆ4+aˆ2+1)=1/24,bˆ3/(bˆ6+bˆ3+1)=1/19,则ab/(a^2+a+1)(b^2+b+1)=(),+

问题描述:

若正数a,b满足aˆ2/(aˆ4+aˆ2+1)=1/24,bˆ3/(bˆ6+bˆ3+1)=1/19,
则ab/(a^2+a+1)(b^2+b+1)=(),
+