Problem 73E
Equations of circles Use the results of Exercise to describe and graph the following circles.
r2 − 2r(−cos θ + 2 sin θ) = 4
Step-by-Step Solution:
Solution 73E
Step 1:
In this problem;
We have to describe and graph of the circle
We know that the polar equation represents a circle of radius ‘R’ centered at ( a, b).
Consider ,
By , using the above result represents a circle.
So , here a = -1, b = 2 , and = 4
= 4
= 4
= 4
+ 4 = 9
= 3.
Therefore , represents a circle of radius ‘
’ centered at ( -1, 2).
Step 2 of 3
Chapter 10.2, Problem 73E is Solved
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Step 3 of 3
