Graph the curve r = cos(8/5) using the parametric graphing facility of a graphing calculator or computer.

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Graph the curve r = cos(8θ/5) using the parametric graphing facility of a graphing calculator or computer. Notice that it is necessary to determine the proper domain for 0. Assuming that you start at θ = 0, you have to determine the value of 0 that makes the curve start to repeat itself. Explain why the correct domain is 0 ≤ θ ≤ 10π.
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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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