P17_042 - 42. Repeating the steps of Eq. 17-34 Eq. 17-40,...

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42. Repeating the steps of Eq. 17-34 −→ Eq. 17-40, but applying cos α +cos β =2cos µ α + β 2 cos µ α β 2 (see Appendix E) instead of Eq. 17-37, we obtain y 0 =[0 . 10 cos πx ]cos4 πt with SI units understood. (a) For non-negative x , the smallest value to produce cos πx =0is x =1 / 2, so the answer is
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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