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Consider a non-stationary time series is defined as below: Yt = B0 +B1t+et Where et is error term and IID in nature. Prove that 1st

Consider a non-stationary time series is defined as below:

Yt = B0 +B1t+et Where et is error term and IID in nature. Prove that 1st difference of this series is stationary.

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