(x²-y²)/xy-y(x-y)/x(y-x)=(x²-y²)/xy+y/x=(x²-y²+y²)/xy=x/y=√6/√2=√3
x=√6,y=√2∴ (x²-y²-xy)/(xy)-(xy-y²)/x²=(6-2-√6×√2)/(√6×√2)-(√6×√2-2)/6=(4-2√3)/(2√3)-(2√3-2)/6=(4√3-6)/6-(2√3-2)/6=(4√3-6-2√3+2)/6=(2√3-4)/6=√3/3-2/3
根据题意解答如上