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 KCSE 2018 Mathematics Paper 1 Video Questions and Answers

(a) On the grid provided, draw the graph of $y=4-\frac{1}{4}x^{2}$ for -4 $\le\,x\le4$(2 marks)
(b) Using trapezium rule, with 8 strips, estimate the area bounded by the curve and the x-axis. (3 marks)
(c) Find the area estimated in part (b) above by integration. (3 marks)
(d) Calculate the percentage error in estimating the area using trapezium rule. (2 marks)

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