化简代数式【(a²+b²/a²-b²)-(a-b/a+b)】÷2ab/(a-b)(a+b)²
问题描述:
化简代数式【(a²+b²/a²-b²)-(a-b/a+b)】÷2ab/(a-b)(a+b)²
答
【(a²+b²/a²-b²)-(a-b/a+b)】÷2ab/(a-b)(a+b)²=[(a^2+b^2)/(a+b)(a-b)-(a-b)^2/(a+b)(a-b)]÷2ab/(a-b)(a+b)²=(a^2+b^2-a^2+2ab-b^2)/(a+b)(a-b)*(a-b)(a+b)^2/2ab=2ab*...