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Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
TAN (Hàm TAN) - Hỗ trợ của Microsoft
Trả về tang của góc đã cho. Điều này yêu cầu các giá trị phải là một số. Nếu đối số của bạn tính bằng độ, hãy nhân nó với PI()/180 hoặc dùng hàm RADIANS để chuyển đổi nó thành radian.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Clear the Delivery Optimization cache - Microsoft Support
Delivery Optimization in Windows 10 clears its cache automatically. Files are removed from the cache after a short time period or when their contents take up too much disk space.
Codecs FAQ - Microsoft Support
There isn't a way to determine with absolute certainty the codec used to compress a file, but the following are your best options: To determine what codec was used with a specific file, play the file in the Player, if possible.
Use the Morph transition in PowerPoint - Microsoft Support
How to set up a Morph transition. To use the Morph transition effectively, you'll need to have two slides with at least one object in common—the easiest way is to duplicate the slide and then move the object on the second slide to a different place, or copy and paste the object from one slide and add it to the next.
Applies To: PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint for the web, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint for iPad, PowerPoint for iPhone, PowerPoint for Android tablets, PowerPoint for Android phones, PowerPoint Mobile
在 Windows 中配对蓝牙设备 - Microsoft 支持
在快速设置中: 若要查找蓝牙的快速设置,请选择任务栏右侧的时间和日期旁边的 网络、 声音或 电池 图标 ( ) 。选择“蓝牙 ”将其打开。 如果在未连接任何蓝牙设备的情况下打开,则它可能显示为“未连接 ”。 如果在快速设置中看不到蓝牙 ,则可能需要添加它。
How to use focus in Windows 11 - Microsoft Support
When you start a focus session, a focus timer will appear on screen. To use additional focus tools in the Clock app, expand the focus timer to get the full view of the Clock app.
How do I create macros? - Microsoft Support
Notes: Macro Repeat does not support switching applications.For example, if you open your Web browser while a macro is repeating in a game, the macro stops repeating. Likewise, if you include a command in a macro to switch to a different application, Macro Repeat does not take effect, and the macro runs once only.
Join a meeting in Microsoft Teams - Microsoft Support
To learn more, check out the Join a Teams meeting video. Join by link. All you need to join a Teams meeting is a link. Select Join the meeting now in your meeting invite to be taken to a page where you can choose to either join on the web or download the desktop app.. If you already have the Teams app, the meeting will open there automatically.
Applies To: Microsoft Teams
Como usar a barra de tarefas no Windows 11 - Suporte da Microsoft
Na caixa de pesquisa na barra de tarefas, digite o nome do app que você deseja fixar na barra de tarefas. Clique com o botão direito do mouse no aplicativo e selecione Fixar na barra de tarefas.Se você não estiver trabalhando, siga as mesmas etapas e selecione Desempinar na barra de tarefas.