计算:(1)2根号2减3根号2; (2)根号2减根号3的绝对值加2根号2.(要具体过程)

2024-12-23 05:16:04
推荐回答(1个)
回答1:

(1)2√2-3√2=-√2 (2)|√2-√3|+2√2=√3 -√2+2√2=√3+√2