X=1/(3-2√2),Y=1/(3+2√2)求X/Y+Y/XX=1/(3-2√2)=3+2√2Y=1/(3+2√2)=3-2√2X+Y=6 XY=1X/Y+Y/X=(X�0�5+Y�0�5)/XY=[(X+Y)�0�5-2XY]/XY=36-2=34
12-6倍根号2
等于34