Draw diagrams in th plane of Cartesian products

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The discussion focuses on verifying the correctness of a solution to a homework problem involving diagrams in the Cartesian product plane. Participants confirm that the provided answer is accurate. The conversation highlights the importance of understanding Cartesian products in relation to diagram representation. Overall, the thread emphasizes the successful completion of the homework task. The solution has been validated by peers.
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Homework Statement



In the attachments, you will see the problem and my answer.


Is my answer correct?
 

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Yep, you got it right!
 

Thread 'Distance between a Clock's hands when the distance is increasing most rapidly'

Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?
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