Fit by least square the following data set x| 0.0| 1.0|2.0| 3.0| yl -1.9|1.0| 4.1|4.3| with the model: y = ao + a1 sin(x) + a2 cos(x) Use at least 5 digits in your answers Provide in the box below the answer for the parameter ao Answer: Model parameter a1 (use at least 5 digits) Answer: Model parameter a2 (use at least 5 digits for your answer) Answer: Compute the squared error SE of the residuals according your fit (Provide SE with one significant digit) Answer:

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