1. Complex Numbers Add and Subtract complex numbers Multiply and divide complex numbers

2. Lets solve x 2 = -1 To solve these problem, French mathematician René Descartes proposed that a number i be defined such that i 2 = -1.

3. Simplify No Decimals

4. Simplify No Decimals

5. Simplify No Decimals

6. Simplify No Decimals

7. Powers of i values go a in a circle Power of i are a cyclical function

8. Powers of i values go a in a circle Find the value the expression

9. Powers of i values go a in a circle Find the value the expression

10. Adding Pure imaginary numbers are like terms.

11. Multiply Imaginary Numbers Remember i 2 equals -1

12. Multiply Imaginary Numbers Pull the i out first

13. Multiply Imaginary Numbers Pull the i out first

14. Solve Remember when you take the square root of a number you must remember its positive and negative answer.

15. Complex number Have two parts: Real and Imaginary

16. When adding complex numbers, add the real numbers together and then the imaginary numbers.

17. When adding complex numbers, add the real numbers together and then the imaginary numbers.

18. When subtracting complex numbers, add the real numbers together and then the imaginary numbers.

19. When subtracting complex numbers, add the real numbers together and then the imaginary numbers.

20. When subtracting complex numbers, add the real numbers together and then the imaginary numbers.

21. Multiplying Complex numbers Its time to remember how to FOIL again.

22. Multiplying Complex numbers Its time to remember how to FOIL again.

23. Multiplying Complex numbers Its time to remember how to FOIL again.

24. Divide Complex numbers Complex Conjugate work as with real numbers conjugates.Important must break into fractions

25. Homework Page 274 #19 – 41 odd, 49 – 55 odd

26. Homework Page 274 #18 – 40 even, 48 – 54 even