Question
If a = 0.121212β¦ (repeating) and b = β5, state
whether each is rational or irrational.Solution
a = 0.121212β¦ is a repeating decimal β it can be expressed as a fraction β rational number. b = β5 cannot be expressed as a ratio of two integers β irrational number. Answer: a is rational, b is irrational.
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