-2 is the additive inverse of +2
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An inverse number is an opposing number of the standard number. For example, if a standard number is 12 then the inverse is -12.
~e → p
direct
Mathematically, an inverse is an opposite, it is something that reverses what its inverse does, for example, addition and subtraction are inverse functions, as are multiplication and division. The inverse of a fraction is obtained by exchanging numerator and denominator; the inverse of a half is two.
for variables x and y and constanat k -