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Ellipses An ellipse (discussed in detail in Section 10.4)
Chapter 8, Problem 57E(choose chapter or problem)
Ellipses An ellipse (discussed in detail in Section 10.4) is generated by the parametric equations x = a cos t, y = b sin t. If 0 < a < b, then the long axis (or major axis) lies on the y-axis and the short axis (or minor axis) lies on the x-axis. If 0 < b < a, the axes are reversed. The lengths of the axes in the x- and y-directions are 2a and 2b, respectively. Sketch the graph of the following ellipses. Specify an interval in t over which the entire curve is generated.
x = 4 cos t, y = 9 sin t.
Questions & Answers
QUESTION:
Ellipses An ellipse (discussed in detail in Section 10.4) is generated by the parametric equations x = a cos t, y = b sin t. If 0 < a < b, then the long axis (or major axis) lies on the y-axis and the short axis (or minor axis) lies on the x-axis. If 0 < b < a, the axes are reversed. The lengths of the axes in the x- and y-directions are 2a and 2b, respectively. Sketch the graph of the following ellipses. Specify an interval in t over which the entire curve is generated.
x = 4 cos t, y = 9 sin t.
ANSWER:Solution 57EStep 1: An ellips