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数学
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|y|=1/x的图像怎么画?
rt 这图怎么画啊 别只给图 给点思考的过程
人气:159 ℃ 时间:2020-01-30 14:59:49
解答
首先根据|y|=1/x可知,1/x>0,所以定义域为(0,∞).所以应先画一个y=1/x,x∈(0,∞)的图像,如图1.因为y有绝对值,故还应增加-y=1/x,x∈(0,∞)的图像,所以在将图1图像根据X轴对称,画出图2.
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