What is a counterexample?
Geometry Logic Review

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Mathematics
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A counterexample is an example that disproves a conjecture.
2.
FLASHCARD QUESTION
Front
True or False: A counterexample proves a conjecture to be true.
Back
False
3.
FLASHCARD QUESTION
Front
True or False: To fully disprove a conjecture, one needs to find only ONE counterexample.
Back
True
4.
FLASHCARD QUESTION
Front
What is an appropriate counterexample for the statement: 'If it is a number, then it is either positive or negative'?
Back
0
5.
FLASHCARD QUESTION
Front
What are the next two numbers in this pattern: 12, 17, 22, 27, ___, ___?
Back
32, 37
6.
FLASHCARD QUESTION
Front
What is used to prove that a conjecture is false?
Back
Counterexample
7.
FLASHCARD QUESTION
Front
Define conjecture in geometry.
Back
A conjecture is a statement that is believed to be true based on observations but has not yet been proven.
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