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a-kb

网络释义

  垂直于

问题: 若向量a=(3cosΘ,3sinΘ),b=(2,2根号3),且(a+kb)垂直于(a-kb),那么k=? .

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  向量

因为(ka+b)与向量(a-kb)的长度相等 所以 (ka+b)^2=(a-kb)^2

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短语

HD-KB-A 快易包装机

KB-Pesticides A 专用气相色谱柱

human oral epidermoid carcinoma KB-A-1 人口腔表皮癌细胞KB

KB-A 电话拨号器

 更多收起网络短语

双语例句权威例句

  • The result is a KB that can be used in conjunction with applications powered by ICM.

    可以利用ICM功能的应用程序结合使用生成的知识库

    youdao

  • For example, the maximum size of a table in DB2 is 64 GB for a 4 KB page size, 128 GB for a 8 KB page size, 256 GB for a 16 KB page size, and 512 GB for a 32 KB page size.

    例如DB 2中,4 KB页面大小而言,最大大小64 GB对于8 KB的页面大小而言,表的最大大小是128 GB;对于16 KB的页面大小而言,表的最大大小是256 GB;对于32 KB的页面大小而言,表的最大大小是512 GB。

    youdao

  • Create and analyze a KB, and generate analysis results.

    创建分析知识库生成分析结果

    youdao

更多双语例句
  • Through further experiments in human cells and animal studies the researchers found that a protein called NF-kB lured zinc into the immune cells that responded fastest to fight infection.

    BBC: Zinc 'keeps immune system in check'

  • Despite a failed attempt at an Apprentice-type show, she has partnered with KB Home to sell Martha-branded houses, signed a deal with Macy's and plans to launch a new magazine, called Blueprint, to cater to "modern, multitasking" women between the ages of 25 and 45.

    FORBES: Magazine Article

  • Windows 1.0 only required a minimum of 256 kilobytes (KB), two double-sided floppy disk drives, and a graphics adapter card.

    FORBES: Happy Birthday, Windows: 27 Facts for 27 Years

更多权威例句
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