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Is the number 3+−13 + -1 rational or irrational?\newlineChoices:\newline(A) rational\newline(B) irrational

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Full solution

Q. Is the number 3+−13 + -1 rational or irrational?\newlineChoices:\newline(A) rational\newline(B) irrational
  1. Evaluate 3+(−1)3 + (-1): Evaluate 3+(−1)3 + (-1).
    3+(−1)3 + (-1)
    = 3−13 - 1
    = 22
  2. Identify number type: Identify whether 22 is a rational or irrational number.\newline22 can be expressed as the fraction 21\frac{2}{1}, which is the quotient of two integers (where the denominator is not zero).\newlineTherefore, 22 is a rational number.

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