Consider the graph of the polar function 𝑟=𝑓(𝜃), where 𝑓(𝜃)=1+2sin𝜃, in the polar coordinate system for 0≤𝜃≤2𝜋. Which of the following statements is true about the distance between the point with polar coordinates (𝑓(𝜃),𝜃) and the origin?
Question
Consider the graph of the polar function 𝑟=𝑓(𝜃), where 𝑓(𝜃)=1+2sin𝜃, in the polar coordinate system for 0≤𝜃≤2𝜋. Which of the following statements is true about the distance between the point with polar coordinates (𝑓(𝜃),𝜃) and the origin?
Solution
The distance between the point with polar coordinates (f(θ),θ) and the origin is given by the function f(θ) itself. In this case, f(θ) = 1 + 2sinθ. This means that the distance between the point and the origin varies as θ changes, and is always equal to 1 + 2sinθ. Therefore, the distance is not constant and depends on the value of θ.
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