Complex Numbers and Quadratic Equations Exercise 5.3

Exercise 5.3

Solve each of the following equations:

1.

Ans. Given:

2.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

3.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

4.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

5.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

6.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

7.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

8.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

9.

Ans. Given:

Comparing with , and

=

= =

Therefore, and

10.

Ans. Given:

Comparing with , and

=

= =

=

Therefore, and