additive inverse additive inverse Additive Inverse Additive Inverse English additive inverse English equal magnitude but opposite sign English English English English Additive Inverse additive inverse Additive Inverse English English English additive inverse English Additive Inverse English Additive Inverse English English English English English inverse additive inverse http://en.wikipedia.org/wiki/Additive_inverse English additive inverse Additive inverse English English English http://en.wikipedia.org/wiki/Additive_inverse English additive inverse English Additive Inverse English http://en.wikipedia.org/wiki/Additive_inverse negation Additive Inverse http://en.wikipedia.org/wiki/Additive_inverse Additive Inverse http://en.wikipedia.org/wiki/Additive_inverse Additive Inverse English English additive inverse English equal magnitude but opposite sign additive inverse English English English Additive Inverse additive inverse Additive Inverse additive inverse Additive Inverse additive inverse English equal magnitude but opposite sign