“微信扫一扫”进入题库练习及模拟考试
解答：
比较大小：\(6 + 3\)与\(2\sqrt {6 \times 3} \)，\(1 + \frac{1}{5}\)与\(2\sqrt {1 \times \frac{1}{5}} \)，\(\frac{1}{2} + \frac{1}{3}\)与\(2\sqrt {\frac{1}{2} \times \frac{1}{3}} \)，\(7 + 7\)与\(2\sqrt {7 \times 7} \)．
参考答案：\( > , > , > , = \)
进入考试题库
