已知a^m+2b^3与5/6x^5y^2n-3都是八次单项式,求(1/m+1/n)^2/(m+n)书名叫(时刻准备着)答案应该是1/81

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已知a^m+2b^3与5/6x^5y^2n-3都是八次单项式,求(1/m+1/n)^2/(m+n)书名叫(时刻准备着)答案应该是1/81已知a^m+2b^3与5/6x^5y^2n-3都是八次单项式,求

已知a^m+2b^3与5/6x^5y^2n-3都是八次单项式,求(1/m+1/n)^2/(m+n)书名叫(时刻准备着)答案应该是1/81
已知a^m+2b^3与5/6x^5y^2n-3都是八次单项式,求(1/m+1/n)^2/(m+n)
书名叫(时刻准备着)
答案应该是1/81

已知a^m+2b^3与5/6x^5y^2n-3都是八次单项式,求(1/m+1/n)^2/(m+n)书名叫(时刻准备着)答案应该是1/81
∵a^m+2b^3与5/6x^5y^2n-3都是八次单项式
∴(m+2)+3=8,m=3
5+(2n-3)=8,n=3
∴(1/m+1/n)^2/(m+n)=2/27
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