已知a＞1，b＞1，且ab+2=2（a+b），则ab的最小值为_1．_刷题宝

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已知a＞1，b＞1，且ab+2=2（a+b），则ab的最小值为____．

上一题下一题 0.0难度选择题更新时间:2020-04-01 09:46:19

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6+4 2

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用你喜欢的方法计算：

7﹣ $\frac{4}{15}$ ﹣ $\frac{11}{15}$	$\frac{5}{11}$ + $\frac{5}{7}$ + $\frac{2}{7}$ + $\frac{1}{11}$	$\frac{1}{6}$ + $\frac{5}{6}$ × $\frac{8}{15}$
18﹣18× $\frac{1}{6}$	$\frac{11}{12}$ ﹣ $\frac{3}{8}$ + $\frac{1}{12}$	$\frac{5}{9}$ × $\frac{16}{9}$ + $\frac{2}{9}$ × $\frac{5}{9}$

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若正比例函数y=kx（k≠0）的图象经过点（6，﹣2），则该正比例函数的表达式为（　　）

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What do you know about the sea? Some people have seen it, but others haven't. The sea looks beautiful on a fine sunny day and it can be very rough when there is a strong wind. What other things do we know about it?

Of course, the sea is very large. In the world there is more sea than land. If you swim in the sea, you know that the water is salty. Rivers take salt from the land into the sea. Some places of the sea are more salty than other places. Do you know the Dead Sea? Fish can't live in it!

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