Complex Numbers - Solutions
CBSE Class–11 Mathematics
NCERT Solutions
Chapter - 5 Complex Numbers and Quadratic Equations
Exercise 5.1
Express each of the complex numbers given in the exercises 1 to 10 in the form a+ib:
1. 
Ans. Here = 
= 
=3
2. 
Ans. Here
= 
3. 
Ans. = 
= 
4. 
Ans. Here
= 
5. 
Ans. Here
= 
6. 
Ans. Here 
= 
= 
7. 
Ans. Here 
= 
= 
= = 
8. 
Ans. Here = 
= 
= 
= 
9. 
Ans. Here
= 
= 
= 
= 
= 
10. 
Ans. Here 
= 
= 
= 
= 
= 
= 
Find the multiplicative inverse of each of the complex numbers given in the exercises 11 to 13.
11. 
Ans. Multiplicative Inverse of
= 
= 
= 
= 
=
12. 
Ans. Multiplicative Inverse of
= 
= 
= 
= 
=
13. 
Ans. Multiplicative Inverse of
= 
= 
= 
14. Express the following expression in the form of 
Ans. Here 
= 
= 
= 
= 
= 