You can insert a symbol by using the "Insert" or "Symbol" function in your word processing software. In Microsoft Word, for example, you can go to the "Insert" tab and select "Symbol" to choose from a variety of symbols to insert into your document. You can also use keyboard shortcuts to insert symbols, such as holding down the Alt key and typing a specific code on the numeric keypad. Additionally, you can copy and paste symbols from websites or other documents into your own work. **

To insert a graphic into the header of a document, you can follow these steps: 1. Open the header section of your document by double-clicking on the top margin of the page. 2. Click on the "Insert" tab in the toolbar. 3. Select "Picture" from the options and choose the graphic you want to insert from your computer. 4. Adjust the size and position of the graphic as needed within the header section. 5. Once you are satisfied with the placement, you can close the header section to see the graphic displayed at the top of each page. **

To insert an icon into a td element in HTML, you can use the <i> or <span> tag and add a class that corresponds to the icon you want to use. For example, if you are using a library like Font Awesome, you can add a class like "fa fa-iconName" to the <i> or <span> tag within the td element. This will display the icon within the td element. Alternatively, you can use an <img> tag and specify the source of the icon image. **

To insert the square root symbol in Word, you can use the following steps: 1. Place your cursor where you want to insert the square root symbol. 2. Go to the "Insert" tab on the Word ribbon. 3. Click on the "Symbol" button and select "More Symbols." 4. In the "Symbol" dialog box, choose "Mathematical Operators" from the "Subset" dropdown menu. 5. Scroll down and select the square root symbol (√), then click "Insert" and close the dialog box. Alternatively, you can use the keyboard shortcut "Alt+=", type "sqrt" and then press the spacebar to automatically convert it to the square root symbol. **

To insert a graphic without white corners in LibreOffice Writer, you can follow these steps: 1. First, make sure the graphic you want to insert has a transparent background. 2. Then, go to the Insert menu and select Picture > From File to insert the graphic into your document. 3. Once the graphic is inserted, you can adjust its position and size as needed. By using a graphic with a transparent background, you can avoid having white corners around the image when inserting it into your document. **

To insert a Photoshop graphic in a previously set size, you can follow these steps: 1. Open your Photoshop file and create a new layer for the graphic. 2. Use the "Place Embedded" option under the File menu to insert the graphic into your document. 3. Once the graphic is placed, you can use the transform tool (Ctrl+T on Windows, Command+T on Mac) to adjust the size of the graphic to match your previously set dimensions. 4. Hold down the Shift key while resizing to maintain the aspect ratio and ensure the graphic fits perfectly within the set size. **

To re-insert the bookmark icon into the address bar in Firefox, you can follow these steps: 1. Open Firefox and type "about:config" in the address bar. 2. Accept the warning message that appears. 3. Search for "browser.urlbar" in the search bar. 4. Double-click on "browser.urlbar.update1" to change its value to "false". This should re-insert the bookmark icon into the address bar in Firefox. **

To insert the symbol for the median (x̃) in Word, you can use the following steps: 1. Place your cursor where you want to insert the symbol. 2. Go to the "Insert" tab on the Word toolbar. 3. Click on "Symbol" and then select "More Symbols." 4. In the "Symbol" dialog box, choose "Latin-1 Supplement" from the "Subset" dropdown menu. 5. Scroll down to find the symbol for the median (x̃) and then click "Insert" to add it to your document. **