|根号2 -根号3|-2根号2
问题描述:
|根号2 -根号3|-2根号2
答
|根号2 -根号3|-2根号2
= √3-√2-2√2
=√3-3√2
|根号2 -根号3|-2根号2
|根号2 -根号3|-2根号2
= √3-√2-2√2
=√3-3√2