Parametrizing Circles Consider the parametric equations (a) Graph the parametric
Chapter 6, Problem 6.1.1.228(choose chapter or problem)
Parametrizing Circles Consider the parametric equations
\(x=a \cos t, \quad y=a \sin t, \quad 0 \leq t \leq 2 \pi\)
(a) Graph the parametric equations for a= 1, 2, 3, 4 in the same square viewing window.
(b) Eliminate the parameter t in the parametric equations to verify that they are all circles. What is the radius?
Now consider the parametric equations
\(x=h+a \cos t, \quad y=k+a \sin t, \quad 0 \leq t \leq 2 \pi .\)
(c) Graph the equations for a=1 using the following pairs of values for h and k:
(d) Eliminate the parameter t in the parametric equations and identify the graph.
(e) Write a parametrization for the circle with center (-1, 4) and radius 3.
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