What counterexample can you provide to show that the difference between two prime numbers is not always even?
GCSE Maths - How to Disprove a Statement by Counter Example - Proof Part 1 #62
Interactive Video
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Mathematics
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9th - 10th Grade
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Hard
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The video tutorial explains how to disprove statements using counterexamples. It covers three examples: disproving that all prime numbers are odd, disproving that the difference between two prime numbers is always even, and disproving that all square numbers end in 1, 4, 6, or 9. The tutorial emphasizes understanding the concept of counterexamples and applying it to various types of questions.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Find a square number that does not end in 1, 4, 6, or 9 and explain your reasoning.
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