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Cet exercice fait partie du cours

<cours>Mise en forme conditionnelle dans Google Sheets</cours>
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Instructions de l’exercice

  • Select the range that contains the dates and add conditional formatting with the Default green background using a COUNTIF statement to highlight any dates that occur more than once.
    • When fixing the range for the first criteria in the function, use $s to fix the row numbers, but don't fix the column letters.

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