What is undo and redo buttons?

1.	What is undo and redo buttons?
Answer» ANSWER: The UNDO function is used to REVERSE a MISTAKE, such as deleting the wrong word in a sentence. The redo function restores any actions that were previously undone using an undo.

Answer»

The UNDO function is used to REVERSE a MISTAKE, such as deleting the wrong word in a sentence.
The redo function restores any actions that were previously undone using an undo.

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