The number a is irrational. Which statement about a−12 is true?Choices:(A)a−12 is rational.(B)a−12 is irrational.(C)a−12 can be rational or irrational, depending on the value of a.
Q. The number a is irrational. Which statement about a−12 is true?Choices:(A)a−12 is rational.(B)a−12 is irrational.(C)a−12 can be rational or irrational, depending on the value of a.
Identify Type of Number: Identify whether 12 is a rational or irrational number.12 is not a perfect square, so its square root cannot be expressed as a simple fraction.12 is an irrational number.
Properties of Irrational Numbers: Consider the properties of irrational numbers. The difference between two irrational numbers can be rational or irrational. For example, if a=12, then a−12=12−12=0, which is rational. However, if a is any irrational number not related to 12, then a−12 is likely to be irrational.
Determine Correct Statement: Determine the correct statement based on the properties of irrational numbers.Since we can find at least one case where a−12 is rational (when a=12), and we know that in general, the difference between two unrelated irrational numbers is irrational, the correct statement is that a−12 can be rational or irrational, depending on the value of a.
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