Question

what is undo and redo ? also write their short cut keys​

Answer 1

Answer:

In most Microsoft Windows applications, the keyboard shortcut for the Undo command is Ctrl+Z or Alt+Backspace, and the shortcut for Redo is Ctrl+Y or Ctrl+Shift+Z.

Explanation:

In most Microsoft Windows applications, the keyboard shortcut for the Undo command is Ctrl+Z or Alt+Backspace, and the shortcut for Redo is Ctrl+Y or Ctrl+Shift+Z.

Answer 2

Answer:

undo = ctrl + z, redo = ctrl + y.

Explanation:

Undo is a command given to the computer when you by mistakenly do something wrong pressing ctrl+z will undo your last command or letter.

Redo is a command which is used when you commanded for undo and you did not want to redo helps you to fix that.