Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 8 - Section 8.4 - Plane Curves and Parametric Equations - 8.4 Exercises - Page 618: 52

Answer

graph 1

Work Step by Step

When $t=\pi\times n$ then $sin (t)=0$ so $x=\sin \left( t+\sin t\right) =\sin \left( \pi n+\sin \pi n\right) =\sin \left( \pi n+0\right) =0$ And $y=\cos \left( \pi n+\cos \pi n\right) =\cos \left( \pi n\pm 1\right) \neq 0$ So we see that when $x=0$ $y\ne 0$ so this graph doesnt pass from origin (0,0) and graph 1 fits only to this condition
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