**??? - 2015 JUNE Q2**

2.

i) Use the trapezium rule, with 4 strips each of width 1.5, to estimate the value of

i) Use the trapezium rule, with 4 strips each of width 1.5, to estimate the value of

giving your answer correct to 3 significant figures. [4]

ii) Explain how the trapezium rule could be used to obtain a more accurate estimate. [1]