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Chapter 9: Q. 73 (page 568)

The letters x and y represent rectangular coordinates. Write each equation using polar coordinates (r,胃).

x=4

Short Answer

Expert verified

The equation is written using polar coordinates as rcos胃=4.

Step by step solution

01

Step 1. Given Information

Given an equation x=4.

We need to write the equation using polar coordinates.

02

Step 2. Concept Used 

If P is a point with polar coordinates r,胃, the rectangular coordinates x,y of P are given by

x=rcos胃y=rsin胃

03

Step 3. Convert into polar coordinates 

In the given equation x=4, we substitute rcos胃for xwe get

x=4rcos胃=4

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