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10 February, 09:36

If a is a rational number and b is a rational number, then the product ab must be

A) rational.

B) imaginary.

C) an integer.

D) irrational.

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Answers (1)
  1. 10 February, 10:28
    0
    A. Rational

    Step-by-step explanation:

    You cant make imaginary numbers by multiplication of rational numbers.

    Since rational numbers includes fractions, a multiplication of rational numbers wont always mean a integer.

    You cant make an irrational number by multiplication of rational.

    Our answer must be rational.
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