
Polar Coordinates and Complex Numbers

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main topic discussed in this video?
Quadratic functions
Linear equations
Polar coordinates in AP Precalculus
Trigonometric identities
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you express a complex number in polar form?
R sec theta + I * R csc theta
R tan theta + I * R cot theta
R cos theta + I * R sin theta
R sin theta + I * R cos theta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to find R for a complex number a + bi?
R = sqrt(a^2 - b^2)
R = a^2 + b^2
R = sqrt(a^2 + b^2)
R = a^2 - b^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which quadrant is the angle pi/4 located on the complex plane?
First quadrant
Second quadrant
Fourth quadrant
Third quadrant
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the reference angle for a complex number with a tangent of 1?
pi/2
pi/4
pi/6
pi/3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a possible polar coordinate for a point in the first quadrant?
5, pi/4
5, 2pi
5, 3pi/2
5, pi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the R value for a point with rectangular coordinates (-2, 2)?
sqrt(4)
4
sqrt(8)
2
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