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Let 
a be an irrational number. Is 
(64 )/(a) rational or irrational?
Choose 1 answer:
(A) Rational
(B) Irrational
(c) It can be either rational or irrational

Let a a be an irrational number. Is 64a \frac{64}{a} rational or irrational?\newline Choose 11 answer:\newline (A) Rational\newline (B) Irrational\newline (C) It can be either rational or irrational

Full solution

Q. Let a a be an irrational number. Is 64a \frac{64}{a} rational or irrational?\newline Choose 11 answer:\newline (A) Rational\newline (B) Irrational\newline (C) It can be either rational or irrational
  1. Evaluate expression: Evaluate the nature of the expression (64)/(a)(64)/(a) where aa is an irrational number.\newlineSince 6464 is a rational number (it can be expressed as a ratio of two integers, 64/164/1) and aa is an irrational number (it cannot be expressed as a ratio of two integers), the division of a rational number by an irrational number results in an irrational number.
  2. Nature of the expression: Check for any mathematical errors in the previous step.\newlineThe reasoning that the division of a rational number by an irrational number results in an irrational number is correct. There are no mathematical errors in this step.

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