已知:a^2/(a^4+a^2+1)=1/24,b^3/(b^6+b^3+1)=1/19,求:ab/[(a^2+a+1)(b^2+b+1)]
问题描述:
已知:a^2/(a^4+a^2+1)=1/24,b^3/(b^6+b^3+1)=1/19,求:ab/[(a^2+a+1)(b^2+b+1)]
答
已知:a^2/(a^4+a^2+1)=1/24,b^3/(b^6+b^3+1)=1/19,求:ab/[(a^2+a+1)(b^2+b+1)]