Computer Science for IGCSE & O level - Data Representation (Section 1 - No. 2)

In two's complement, what is the effect of inverting all the bits and adding 1?

Finding the positive equivalent of a negative number.

Finding the negative equivalent of a positive number.

Converting a number to its one's complement.

Performing binary addition.

This operation converts from a positive integer into a negative one, and vice-versa