(i)[3]
Use the trapezium rule, with two intervals, to estimate the value of $\int_{-1.2}^{1.2} \frac{3}{\sqrt{9 - x^3}} \, dx$, and give your answer correct to $2$ decimal places.
(ii)[1]
Explain, with reference to the diagram, why the trapezium rule might be expected to produce a close approximation to the actual value of the integral in this case.