Question

3. Find the multiplicative inverse of the following: 1 4 -3 814 16 -3 2. (i) (ii) (1​

Answer 1

Answer:

Let Z

i

be the multiplicative Inverse of 2−3i

so that,

Z

i

(2−3i)=1⇒Z

i

=

2−3i

1

=

(2−3i)(2+3i)

2+3i

=

2

2

−(−3

2

)

2+3i

=

(2−3i)(2+3i)

2+3i

=

2

2

+3

2

2+3i

=

13

2

+

13

3i