按照你的说法就是:
(a+b/2ab²)² =(a+b)²/4a²b^4 ①
(a²-b²/ab²)²=(a+b)²(a-b)²/a²b^4 ②
[1/2(a-b)]²=1/4(a-b)² ③
①÷②=(a+b)²/4a²b^4 × a²b^4/(a+b)²(a-b)²=1/4(a-b)² ④
④÷③=1/4(a-b)²÷1/4(a-b)²=1
按照你的说法就是:
(a+b/2ab²)² =(a+b)²/4a²b^4 ①
(a²-b²/ab²)²=(a+b)²(a-b)²/a²b^4 ②
[1/2(a-b)]²=1/4(a-b)² ③
①÷②=(a+b)²/4a²b^4 × a²b^4/(a+b)²(a-b)²=1/4(a-b)² ④
④÷③=1/4(a-b)²÷1/4(a-b)²=1