(1-根号2+根号3)(1-根号2-根号3)

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/22 21:40:11

(1-根号2+根号3)(1-根号2-根号3)

(1-√2+√3)(1-√2-√3)
=[(1-√2)+√3][(1-√2)-√3]
=(1-√2)²-3
=1-2√2+2-3
=-2√2

(1-根号2)平方-根号3平方
=3-2根号2-3
=-2根号2

(1-√2)²-√3²=1-2√2 2-3=-2√2