What Is the Smallest Interval For $\theta(0 \leq \theta \leq k)$

question 69

Essay

What is the smallest interval for $\theta(0 \leq \theta \leq k)$ that gives a complete graph of the polar equation $r=4 \cos 5 \theta$ ? Sketch the graph to show which petals are generated by positive values of $r$ and which by negative values of $r$ .

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