3.2 Complex Numbers with answers - Weebly
Transcript of 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
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Examples:
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Practice:
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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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Adding & Subtracting
OPERATIONS with COMPLEX NUMBERS
Multiplying because
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Practice:
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Complex Solutions/ZerosSolve the following quadratic equations.
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HW: pg. 108: 7, 11, 13, 15, 17, 21, 25