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If a holds for all rational a, then 1 is called the:

Class 8Properties of Rational NumbersRational Numbers
  • Amultiplicative identity
  • Badditive identity
  • Cmultiplicative inverse
  • Dadditive inverse

Step-by-Step Solution

The number that leaves every number unchanged under multiplication is the multiplicative identity, which is 1.
Answer: A) multiplicative identity

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