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3.2 Complex Numbers with answers 1 3.2 Complex Numbers WarmUp: ACT practice In the figure to the right, ADC measures 50 o , ACB measures 65 o , and BAC measures 90 o . What is the measure of BAD? A. 105 o B. 115 o C. 130 o D. 140 o E. 155 o

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Page 1: 3.2 Complex Numbers with answers - Weebly

3.2 Complex Numbers with answers

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3.2 Complex NumbersWarm­Up: ACT practiceIn the figure to the right, ∠ADC measures 50o, ∠ACB measures 65o, and ∠BAC measures 90o. What is the measure of ∠BAD?

A. 105o

B. 115o

C. 130o

D. 140o

E. 155o

Page 2: 3.2 Complex Numbers with answers - Weebly

3.2 Complex Numbers with answers

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Page 3: 3.2 Complex Numbers with answers - Weebly

3.2 Complex Numbers with answers

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Examples:

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3.2 Complex Numbers with answers

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Practice:

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3.2 Complex Numbers with answers

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If b ≠ 0, then a + bi is an imaginary number.

The number a is the real part, and the number bi is the imaginary part.

A complex number written in standard form is a number a + bi where a and bi are real numbers.

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3.2 Complex Numbers with answers

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Adding & Subtracting 

OPERATIONS with COMPLEX NUMBERS

Multiplying because 

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3.2 Complex Numbers with answers

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Practice: 

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3.2 Complex Numbers with answers

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Complex Solutions/ZerosSolve the following quadratic equations.

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3.2 Complex Numbers with answers

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HW: pg. 108: 7, 11, 13, 15, 17, 21, 25