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NCERT Solutions class-11 Maths Exercise 5.1

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Exercise 5.1

Express each of the complex numbers given in the exercises 1 to 10 in the form :

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

= =

= =

=

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