A combination of two drugs (hydrochlorothiazide and oxybutynin) is commonly used to regulate blood pressure in elderly patients. These two drugs mainly affect two physiological variables of the patient (blood pressure and urine production late). Since the goat is to regulate both variables with these two drugs, interaction analysis has to be performed to design two SISO control loops. For the following model, there are two inputs and two outputs wherey1 = normalized (dimensionless) blood pressurey2 = normalized urine production rateu1 = rate of hydrochlorothiazide ingestionu2 = rate of oxybutynin Ingestion(a) Calculate the relative gain array.(b) What loop pairing would you suggest?

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0.04е-оле 0.0005e 015: 0.21s + 1 -0.02 -0.02 0.21s + 1 0.11s + 1 0,22 its y2 0.12s +1