Question

find the multiplicative inverse of (6+5i)²​

Answer 1

Answer:

the square of 6 + 5i -

= (6 + 5i)²

= 36 + 2 × 6 × 5i + (5i)²

= 36 + 60i -25

= 11 + 60i

Hence the multiplicative inverse is -

1 / 11 + 60i