题目描述：
1.将√4+2√3化简成最简二次根式为?2.1/a√下1/a+1=?3.化简√下7+4√3答案解析
【答案】1.将√4+2√3化简成最简二次根式为2+2√3;2.1/a√下1/a+1=﹙1／a² ﹚√a+1;
3.化简√下7+4√3=√7+4√3 【其他答案】详细过程，谢谢
1.2+2√3
2.1
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