括号二减根号三括号2017次方乘括号二加根号三括号2019次方减2×1-2分之根号三括号?

2024-11-28 14:46:48
推荐回答(2个)
回答1:

(2-√3)^2017 × (2+√3)^2019 - 2×(1-√3/2)
= (2-√3)^2017 × (2+√3)^(2017+2) - (2-√3)
= (2-√3)^2017 × (2+√3)^2017 × (2+√3)² - (2-√3)
= [ (2-√3) × (2+√3) ]^2017 × (4+2√3) - (2-√3)
= [ 4-3 ]^2017 × (4+2√3) - (2-√3)
= 1^2017 × (4+2√3) - (2-√3)
= 1×(4+2√3) - (2-√3)
= 4+2√3 - 2+√3
= 2 + 3√3

回答2:

2的2020次方-2的2019次方
=2x2的2019次方-2的2019次方
=2的2019次方