计算:(√18-2√1⼀2- 3√1⼀3)-(√1⼀8-√12)=?

2025-05-08 14:56:53
推荐回答(3个)
回答1:

:(√18-2√1/2- 3√1/3)-(√1/8-√12)
=3√2-2*(√2)/2-(3√3)/3-(√2)/4+2√3
=3√2-√2-√3-1/4*√2+2√3
=(2-1/4)√2+√3
=(7√2)/4+√3

回答2:

(√18-2√1/2- 3√1/3)-(√1/8-√12)
=3√2-√2-√3-√2/4+√2/2
=5√2/2-√3

回答3:

7/4√2+√3