(1+√2+√3﹚﹙1+√2-√3﹚这道题是咋算的这道题是咋算的,快点哦
问题描述:
(1+√2+√3﹚﹙1+√2-√3﹚这道题是咋算的
这道题是咋算的,快点哦
答
(1+√2+√3﹚﹙1+√2-√3﹚=(1+√2)^2-3=1+2√2+2-3=2√2
答
(1+√2+√3﹚﹙1+√2-√3﹚
=(1+√2﹚^2-﹙√3﹚^2
=1+2+2√2-3
=2√2