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Is the number 8+−18 + -1 rational or irrational?\newlineChoices:\newline(A) rational\newline(B) irrational

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Full solution

Q. Is the number 8+−18 + -1 rational or irrational?\newlineChoices:\newline(A) rational\newline(B) irrational
  1. Evaluate 8+(−1)8 + (-1): Evaluate 8+(−1)8 + (-1).8+(−1)8 + (-1)= 8−18 - 1= 77
  2. Identify number type: Identify whether 77 is a rational or irrational number.\newline77 can be expressed as the fraction 71\frac{7}{1}, which is the quotient of two integers (where the denominator is not zero).\newlineTherefore, 77 is a rational number.

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