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Q: Consider the following time series. Quarter Year 1 Year 2 Year 3 71 68 62 49 41 51 2.

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A: Given:      Equation x+32+y-12=10 we know that a+b2=a2+b2-2ab    x+32=x2+6x+9    y-12=y2-2y+1 Now…

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