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It is unlikely that you have a built in shortcut key.

However, if you are using Microsoft Word you can set up a custom hotkey. A square root sign has character code 221A - you can find it under Insert: Symbol. From there you can set a keyboard shortcut; I've just set mine to Ctrl + SQ, which works fine.

The standard shortcut key is "ALT"+ X

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11y ago

What else can I help you with?