Mathematical formulas

Algebra

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Subjects
Algebra
Numbers and algebraic properties
Additive and multiplicative inverses

1. Numbers and algebraic properties

Additive and multiplicative inverses

Level: fundamental

In 1. Numbers and algebraic properties

Formula

a + (- a) = 0; a \cdot \frac{1}{a} = 1 (a \neq = 0)

Detail

Every number has an additive inverse; nonzero numbers have a multiplicative inverse.

Related formulas

Related
Identity elements
$a + 0 = a; a \cdot 1 = a$
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