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Yes: it is 0.

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Q: Does the set of a rational number have an additive identity?
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What number is the additive identity in the set of real numbers?

Zero is the additive identity in the set of real numbers; when you add zero to any number, the number does not change its identity.


Does a real number contain the set of rational numbers?

No. A real number is only one number whereas the set of rational numbers has infinitely many numbers. However, the set of real numbers does contain the set of rational numbers.


Is zero a number?

Yes, zero is a number.Yes, zero is a number.Edit: Zero is actually not classified as a number - it is a separator. It stands for nothing. Take as an example the number One hundred and nine (109). Without the zero to separate the 100 from the 9, it would look the same as the number 19 !Edit 2: Zero IS a number and not just a separator. The set of numbers (integers or rationals or reals or complex) includes, AS A MEMBER, an additive identity such that for any member x in the set, x + i = i + x. This additive identity is denoted by the number 0. So it is very much a number.


What group of real numbers will 9.34 go to?

A group containing 9.34 is a set of numbers, with some operation defined on the set that also satisfies:closure,associativity,identity, andinvertibility.Two simple groups will be the additive group of 9.34 and all its multiples (including negative ones). The identity is 0.The other is the multiplicative group consisting of all powers of 9.34 and the identity is 1.There can be a finite additive group derived from the first by defining the operation as modulo addition, and similarly with the multiplicative group.Finally, any group that contains one of these groups and also maintains the four conditions listed above, for example, all rational numbers, will also meet the requirements.


Is a rational number a subset of the set of integers?

not necessarily... An integer is a rational number, but so is any real number between consecutive integers.

Related questions

Do sets of rational numbers have an additive identity?

There is only one set and it does have an additive identity.


Does the set of rational numbers have an additive identity?

Yes, it does.


Does the set of rational numbers have an additives identify?

Yes. The additive identity is 0.


What number is the additive identity in the set of real numbers?

Zero is the additive identity in the set of real numbers; when you add zero to any number, the number does not change its identity.


How Does a set of rational numbers have an additive identity?

I t is the number 0, which has the property that x + 0 = 0 + x = x for all rational numbers x.


Is zero is not considered a real number?

Wrong! Not only is zero a real number, but it is the additive identity for the set of integers, rational numbers as well as real numbers.


What is Additive Identity Property?

The additive identity for a set is a number (denoted by 0) such that a + 0 = 0 + a = a for all elements a which belong to the set.


What is the difference between 0 73 and 38.5?

The first number is 0, the additive identity for the set of numbers. The second, 73 is a positive integer or counting number and the third, 38.5 is a decimal representation of a rational number.


Why 0 is included in whole number set?

To give the set closure with respect to subtraction, or to give it an additive identity.


Does the set of rational numbers have an additive inverse?

No. It has a different additive inverses for each element.


Does the set of rational numbers have an additive identityt?

Yes, it does.


What number is zero?

not a real number * * * * * Zero is very much a real number. In fact it is the additive identity for the set of real numbers.