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3.27 Suppose y = Bo + Bit + ... +3,19 + X, B, 0, where x is stationary. First, show that ykx, is stationary for any k = 1,2,.

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Answer :- Given that, fiy to Yote = Be +34 + ......+By++X where 24 98 stationery To prove , 1.OK24. is staticasy for any k =

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