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Chapter 9: Q 38. (page 747)

Find the smallest interval necessary to draw a complete graph of the functions in Exercises 33-38and then graph each function using a graphing calculator or computer algebra system.

r=ecos2胃鈭�1.5cos4胃

Short Answer

Expert verified

[0,2蟺]

Step by step solution

01

Given information

r=ecos2胃鈭�1.5cos4胃

02

Explanation

Consider the polar equation r=ecos2胃-1.5cos4胃

The goal is to draw the graph of the polar equation supplied. We will draw the graph here using a graphing calculator.

If we observe the graph, the values of the graph are repeated after an interval of 2蟺 so the smallest interval required for the graph is [0,2蟺] Therefore, the smallest interval for the graph is [0,2蟺]

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