# Find the multiplicative inverse of each of the complex numbers given in the Exercises 11 to 13 : - i.

**Solution:**

The given complex number is,

z = - i

Then, z = i and

|z|² = 1²

= 1

Therefore, the multiplicative inverse of - i is given by

z^{- 1} = z/|z|²

= i/1

= i

NCERT Solutions Class 11 Maths Chapter 5 Exercise 5.1 Question 13

## Find the multiplicative inverse of each of the complex numbers given in the Exercises 11 to 13 : - i.

**Summary:**

A complex number is given. We have found the complex number's multiplicative inverse and it comes out to be i.