Show that if an AR(2) process has a pair of complex roots given by r exp( i

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Show that if an AR(2) process has a pair of complex roots given by r exp( i ) they can be written in terms of the AR coe cients as r =

2 and cos( ) = 1 2r.

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Time Series Modeling Computation And Inference

ISBN: 9781498747028

2nd Edition

Authors: Raquel Prado, Marco A. R. Ferreira, Mike West

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