6. Given that the first-order trend-stationary process y, = do + a₁-1 + a₂t + & where | a₁ <1 is = c2+ &, find the values of co, identical to the process generated by y = co + cit + where C₁, and c2. (Hint: Express co, c₁, and ez as functions of ao, ai, and a2).

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