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Question:
Check whether the statement below is true or false. “The square root of every composite number is rational.” Justify your answer by proving rationality or irrationality as applicable
Answer:

Please refer to the following link to understand how to prove irrationality, at 26:35.
https://www.youtube.com/watch?v=o-41XKAebXA&list=PLph3YM7PV2E7wIMeSDtvomkBjh-K_RntT&index=6

 

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