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What is the multiplicative inverse of 1/2?
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What is the multiplicative inverse of 1/2?

User Cervezas
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1 Answer

3 votes

Answer: 2

Step-by-step explanation

The numbers p and q are multiplicative inverses of each other if and only if pq = 1.

This can be rearranged to q = 1/p

One number is the reciprocal of the other.

Some examples

  • 3 and 1/3
  • 2/7 and 7/2

Based on this definition, 0 does not have a multiplicative inverse. This is because 1/0 is undefined.

User Raleigh Buckner
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8.1k points
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