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The graph forms a rectangular hyperbola. In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/ x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1. The multiplicative inverse of a fraction a / b is b / a. For the multiplicative inverse of a real number, divide 1 by the number. The multiplicative inverse , or reciprocal, of a number is a value that, when multiplied with the original number, results in a product of one. It is also called the reciprocal of a number. Multiplicative inverse of a number is another number that, when multiplied by the original number, results in the identity element for multiplication , which is 1. In other words, for a non-zero number a, its multiplicative inverse is denoted as a−1, and it satisfies the equation: a⋅a-1 = 1.
