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What are the elements in rational numbers having multiplicative inverse?
All rational numbers, with the exception of zero (0), have a multiplicative inverse. In fact, all real numbers (again, except for zero) have multiplicative inverses, though the inverses of irrational numbers are themselves irrational. Even imaginary numbers have multiplicative inverses (the multiplicative inverse of 5i is -0.2i - as you can see the inverse itself is also imaginary). Even complex numbers (the sum of an imaginary number and a real number) have multiplicative inverses (the inverse of [5i + 2] is [-5i/29 + 2/29] - similar to irrational and imaginary numbers, the inverse of a complex number is itself complex). The onlynumber, in any set of numbers, that does not have a multiplicative inverse is zero.
Which number is known as the additive identity which number is the multiplicative identity?
Additive identity: zero. Multiplicative identity: one.
An integer and its opposite are?
equidistant from zero on a standard number line
How are a number and its opposite represented on a number line?
The answer will depend on what you mean by "opposite": the additive inverse or the multiplicative inverse.
Does the number zero have an opposite number?
Zero does not have an opposite * * * * * While it is true that zero has no multiplicative opposite (or inverse), it certainly has an additive inverse, and that is also zero, since 0 + 0 = 0
