12. Complex Numbers & Polar Equations
United States of America
Grades 9-12
12.05 Polar form
Interactive practice questions
Consider the points on the following polar graphs.
a
Write down the missing coordinates in the graph below. Give your answer in terms of $r$r and $\theta$θ.
b
Write down the coordinates of $A$A in the graph below. Give your answer in terms of $r$r and $\theta$θ.
c
Write down the coordinates of $A$A in the graph below. Give your answer in terms of $r$r and $\theta$θ.
Easy
3min
Consider the polar equation $r=2\cos\theta$r=2cosθ.
What is the value of $r$r if $\theta=30^\circ$θ=30°?
Easy
< 1min
Consider the polar equation $r=2\sin2\theta$r=2sin2θ.
What is the value of $r$r if $\theta=30^\circ$θ=30°?
Easy
< 1min
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