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3 cards from this section. Quick, good the night before a test.
What is an irrational number?
Consider numbers like √2 and π.
Can you provide an example of a rational number?
Think of any whole number divided by another.
Which of the following is an irrational number?
Think about the decimal form of √2.
True or False: All rational numbers can be represented as fractions.
Consider the definition of rational numbers.
Explain how Cantor's diagonal argument proves there are more irrational numbers than rational numbers.
Focus on how decimals can be adjusted.
Given a circle with radius 1, find the circumference using π. Discuss how this uses irrational numbers.
Consider the relationship between circular dimensions and π.
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