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What is the Multiplicative inverse of -1?
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What is the Multiplicative inverse of -1?
Multiplicative Inverse of -1

The multiplicative inverse of -1 is a number that when multiplied by -1 gives the product of 1. In other words, it is the reciprocal of -1.


Calculation of Multiplicative Inverse

The formula for finding the multiplicative inverse of a number a is:


a x (1/a) = 1


To find the multiplicative inverse of -1, we substitute -1 for a in the formula:


-1 x (1/-1) = 1


So, the multiplicative inverse of -1 is -1 itself.


Explanation

When we multiply any number by -1, the sign of the number changes. For example, if we multiply 4 by -1, we get -4. Similarly, if we multiply -4 by -1, we get 4.


However, when we multiply -1 by -1, the sign of the number does not change. We get a positive number, which is 1. This is because -1 is the only number that when multiplied by itself gives 1.


Therefore, the multiplicative inverse of -1 is -1 itself, as -1 x -1 = 1.


Conclusion

The multiplicative inverse of -1 is -1 itself, as -1 x -1 = 1. This means that when we divide 1 by -1, we get -1 as the answer. It is important to note that not all numbers have a multiplicative inverse. For example, 0 does not have a multiplicative inverse because any number multiplied by 0 gives 0, not 1.
Community Answer
What is the Multiplicative inverse of -1?
It's -1 only because
in fraction -1 would be written as -1/1 so it's reciprocal is -1/1 only
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