(1-根号2+根号3)²-(根号2+根号3)²化简
问题描述:
(1-根号2+根号3)²-(根号2+根号3)²化简
答
(1-根号2+根号3)²-(根号2+根号3)²
=(1-根号2+根号3+根号2+根号3)*(1-根号2+根号3 - 根号2-根号3)
=(1+2根号3)*(1-2根号2)
=1-2根号2+2根号3-4根号6