根号二减根号三的2020次减根号二加根号三的2020次等于多少?

2024-11-27 22:37:31
推荐回答(1个)
回答1:

(√2+1)^2020×(√2一1)^2019
=(√2+1)(√2+1)^2019×(√2一1)^2019
=(√2+1)×[(√2+1)(√2一1)]^2019
=(√2+1)×1
=√2十1。