We have to find additive inverse and multiplicative inverse
[tex]\\ \sf\bull\longmapsto -16[/tex]
[tex]\\ \sf\bull\longmapsto -(-16)[/tex]
[tex]\\ \sf\bull\longmapsto 16[/tex]
And
[tex]\\ \sf\bull\longmapsto (-16)^{-1}[/tex]
[tex]\\ \sf\bull\longmapsto \dfrac{1}{-16^1}[/tex]
[tex]\\ \sf\bull\longmapsto \dfrac{1}{-16}[/tex]
