The cross-sectional area of Sungai Melaka was expressed by: 30 2 + 3x*dx As a civil engineer. you have been appointed to design a cross-sectional area of 30 meter width of this river to predict the river's flow rate during rainy or monsoon season. Choose the most accurate Simpson's rule and justify your selection. Divide the domain from 0 meter to 30 meter into 5 equal intervals and detemnine its absolute error.

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