multiplicative inverse


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multiplicative inverse

[‚məl·tə′plik·əd·iv ′in‚vərs]
(mathematics)
In a mathematical system with an operation of multiplication, denoted ×, the multiplicative inverse of an element e is an element ē such that e × ē = ē × e = 1, where 1 is the multiplicative identity.
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a) The proof for 1 as the multiplicative inverse of itself is trivial.
n] 1) as the multiplicative inverse of itself can be given as follows for some integer z that is less than [2.
This should be an easy task for the students, with most of them expected to point out that the LOCK and the KEY are the multiplicative inverses of each other.