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Rational or irrational?
Is this number rational or irrational?
√2
All difficulties
0%
Accuracy
0
Current streak
0
Total answers
0
Correct
What does the generator do?
It shows integers, fractions, terminating decimals, square roots (of perfect and non-perfect squares) and π, and asks you to classify each.
How to solve
A number is rational if it can be written as a fraction of whole numbers — this includes roots of perfect squares. Roots of non-perfect squares and π are irrational.