Mayday213 Mayday213
  • 25-03-2016
  • Mathematics
contestada

why negative reciprocals always have a product of negative 1

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RASEA23
RASEA23 RASEA23
  • 25-03-2016
They are like that because the negative reciprocal is a positive reciprocal. The product of a number and its reciprocal is 1 and a negative multiplied by a positive is negative.

Example: -4/5
Reciprocal of -4/5 is 5/4
-4/5 x 5/4 = -1

Hope this helps :)
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AL2006
AL2006 AL2006
  • 25-03-2016
The negative reciprocal of (a/b) is (-b/a).

Multiply those, then simplify, and you'll see it right away.
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