Question: Hello. I have to Construct a truth table for the following compound statement and state if it is a tautology. ( ) i am confused

Hello. I have to Construct a truth table for the following compound statement and state if it is a tautology. ( )

i am confused how to make a truth table at all. Can you please show me how this one would be constructed? And what is a tautology? Is this one ? Thanks!!

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