若式子根号2-X加根号X-1有意义,则X的取值范围是什么?若二次根式根号-2X加6有意义,化简绝对值X-4减绝对值7-X?已知M,N都是实属,且满足根号M-4加根号4-M加9,求根号MN的值?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 06:57:29
![若式子根号2-X加根号X-1有意义,则X的取值范围是什么?若二次根式根号-2X加6有意义,化简绝对值X-4减绝对值7-X?已知M,N都是实属,且满足根号M-4加根号4-M加9,求根号MN的值?](/uploads/image/z/669622-22-2.jpg?t=%E8%8B%A5%E5%BC%8F%E5%AD%90%E6%A0%B9%E5%8F%B72-X%E5%8A%A0%E6%A0%B9%E5%8F%B7X-1%E6%9C%89%E6%84%8F%E4%B9%89%2C%E5%88%99X%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF%E4%BB%80%E4%B9%88%3F%E8%8B%A5%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%E6%A0%B9%E5%8F%B7-2X%E5%8A%A06%E6%9C%89%E6%84%8F%E4%B9%89%2C%E5%8C%96%E7%AE%80%E7%BB%9D%E5%AF%B9%E5%80%BCX-4%E5%87%8F%E7%BB%9D%E5%AF%B9%E5%80%BC7-X%3F%E5%B7%B2%E7%9F%A5M%2CN%E9%83%BD%E6%98%AF%E5%AE%9E%E5%B1%9E%2C%E4%B8%94%E6%BB%A1%E8%B6%B3%E6%A0%B9%E5%8F%B7M-4%E5%8A%A0%E6%A0%B9%E5%8F%B74-M%E5%8A%A09%2C%E6%B1%82%E6%A0%B9%E5%8F%B7MN%E7%9A%84%E5%80%BC%3F)
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