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Warm Up

Tuesday, February 4 th. Warm Up. Simplify each expression 1. 2. . Week 4-# 2. Quiz on Friday . Imaginary Numbers Simplifying Adding and subtracting Multiplying and dividing Review Rational exponents Simplifying radicals .

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Warm Up

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  1. Tuesday, February 4th Warm Up Simplify each expression 1. 2.

  2. Week 4-#2

  3. Quiz on Friday Imaginary Numbers • Simplifying • Adding and subtracting • Multiplying and dividing Review • Rational exponents • Simplifying radicals

  4. So here’s what the math people did: They used the letter “i” to represent the square root of (-1). “i” stands for “imaginary” So, does really exist?

  5. Examples of how we use

  6. 2.) 3.) -Express these numbers in terms of i. Simplify. 1.)

  7. Powers of i(The i Chart)

  8. ALWAYS DIVIDE BY 4!!!! Reference

  9. Complex NumberStandard Form(add this to your notes)

  10. Complex Numbers • A complex number has a real part & an imaginary part. • Standard form is: Real part Imaginary part Example: 5+4i

  11. Write the complex number in standard form

  12. Adding and Subtracting • add or subtract the real parts • then add or subtract the imaginary parts)

  13. Ex1: Ex3: Ex2:

  14. You Try! Perform the subtraction and write the answer in standard form. ( 3 + 2i ) – ( 6 + 13i ) 3 + 2i – 6 – 13i –3 – 11i

  15. Simplify.

  16. Simplify.

  17. One step further…. 4

  18. Worktime • Finish FAL-Glue tables, expressions, and words. Turn in at front table • Complete post assessment. Turn in at front table • Work on Homework 22-41 on back of Friday’s Homework

  19. You should have a yellow and orange match up! • Each pair will be matched with a table • Hint: Tables may have more than one pair • When you think you have it organized the way you would like, glue down on a piece of construction paper. THERE IS MORE THAN ONE WAY TO ORGANIZE THIS!

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