Find multiplicative inverse of the following: `2-4i`

Find multiplicative inverse of the following: -3+4i

Find multiplicative inverse of the following: -i

Find the product and quotient of the complex numbers 1+i and 3+i. Find multiplicative inverse of the following.

Find the multiplicative inverse of the following: (i) 3+4i (ii) (5-7i)^(2) .

Find multiplicative inverse of the following: 2+sqrt(3)i

Find the multiplicative inverse of the following : 2^(-5)

Find the multiplicative inverse of the following : 3^(-4)

Find multiplicative inverse of the following: (sqrt(5)+i3)