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Question 4 (a) Using the substitution x = = sec 0, evaluate the following integral. Show your working clearly. 36x2 - 9 dx X (10

Question 4 (a) Using the substitution x = = sec 0, evaluate the following integral. Show your working clearly. 36x2 - 9 dx X (10 marks) (b) Evaluate f Vx2 - 4x + 4 dx, simplifying your answer. (10 marks)

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