Q. Which of the following is a rational number?Choices:(A) 98β(B) 3β(C) Ο(D) 2β
Definition of Rational Number: A rational number is a number that can be expressed as the quotient or fractionqpβ of two integers, where p and q are integers and q is not zero. Let's evaluate each choice to see if it fits this definition.
Choice (A) Evaluation: Choice (A) is 98β. This is a fraction where both the numerator (8) and the denominator (9) are integers, and the denominator is not zero. Therefore, 98β is a rational number.
Choice (B) Evaluation: Choice (B) is 3β. The square root of 3 is an irrational number because it cannot be expressed as a fraction of two integers. It is a non-repeating, non-terminating decimal.
Choice (C) Evaluation: Choice (C) is Ο (pi). Pi is an irrational number because it cannot be expressed as a fraction of two integers. It is a non-repeating, non-terminating decimal that represents the ratio of the circumference of a circle to its diameter.
Choice (D) Evaluation: Choice (D) is 2β. The square root of 2 is also an irrational number because it cannot be expressed as a fraction of two integers. It is a non-repeating, non-terminating decimal.
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