Question

find the multiplicative inverse 1. 43/-5​

Answer 1

Step-by-step explanation:

Let z=4−3i.

Then,

z

=4+3i and ∣z∣

2

=4

2

+(−3)

2

=16+9=25

Therefore, the multiplicative inverse of 4−3i is given by :

z

−1

=

∣z∣

2

z

=

25

4+3i

=

25

4

+

25

3

i