Question

Define additive identity,additive inverse.

Answer 1

additive inverse in matrices means to change the sign of the given matrix and make it just opposite so that on adding the initial and final matrix the answer would come a matrix of zero as given in the image.

Answer 2

In mathematics, the additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite (number),sign change, and negation.


additive inverse
the number in the set of real numbers that when added to a given number will yield zero



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