4. Find the multiplicative inverse of the following.
(i) - 13 (ii) (iii) (iv) (v) (vi) - 1
(i) The multiplicative inverse of -13 is because
(ii) The multiplicative inverse of is because of i
(iii) The multiplicative inverse of is 5 because
(iv) The multiplicative inverse of is because
(v) The multiplicative inverse of is because
(vi) The multiplicative inverse of -1 is -1 because