Difference between revisions of "Reciprocal"

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<math>q</math> and <math>r</math> are multiplicative inverses of each other if and only if <math>r \cdot q = q \cdot r = 1</math>.
 
<math>q</math> and <math>r</math> are multiplicative inverses of each other if and only if <math>r \cdot q = q \cdot r = 1</math>.
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P.S If you take the reciprocal of <math>0</math> one of these three things will happen: the <math>UNIVERSE</math> will end, a <math>BLACK HOLE</math> will be created, or you will eat cereal for breakfast. The last thing is <math>VERY UNLIKELY</math> to happen.
  
 
==See Also==
 
==See Also==

Revision as of 10:14, 30 December 2024

The reciprocal of a non-zero number $r$ (usually a real number or rational number, but also a complex number or any non-zero element of a field) is its multiplicative inverse. The reciprocal is usually denoted $r^{-1}$ or $\frac 1r$.

$q$ and $r$ are multiplicative inverses of each other if and only if $r \cdot q = q \cdot r = 1$.

P.S If you take the reciprocal of $0$ one of these three things will happen: the $UNIVERSE$ will end, a $BLACK HOLE$ will be created, or you will eat cereal for breakfast. The last thing is $VERY UNLIKELY$ to happen.

See Also

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