1. 7.10 C OMPLEX N UMBERS A DDITION AND S UBTRACTION

2. A number is in the form a represents the part b represents the part Definition of Addition in the Complex Numbers : If a, b, c, and d are real numbers, then complex real imaginary

3. Definition For any real numbers a and b, the of is and vice versa. If a complex number is called z, its complex conjugate is called. complex conjugate

4. Let

5. S IMPLIFY. 1.2.

6. S IMPLIFY. 3.4.

7. S IMPLIFY. 5.6.

8. S IMPLIFY. 7.8.

9. Theorem : If a, b, c, and, d are real numbers, then if and only if and.

10. 9. Solve for x and y, where x and y are real numbers.

11. 10. Solve for x and y, where x and y are real numbers.