根号72-根号16/根号8-根号32-根号2/根号2

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 18:38:12

根号72-根号16/根号8-根号32-根号2/根号2
根号72-根号16/根号8-根号32-根号2/根号2

根号72-根号16/根号8-根号32-根号2/根号2
根号72-根号16/根号8-根号32-根号2/根号2
=6根号2-根号2-4根号2-1
=根号2-1

原式=√(72/8)-√(16/8)-√(32/2)+√(2/2)
=√9-√2-√4+√1
=3-√2-2+1
=2-√2

=6√2-√2-4√2-1
=√2-1