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1. Find the derivatives of each of these functions. (3 marks each) a. y = (x + 7)3 (x - 9)4 b. y = x2-5

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1. Find the derivatives of each of these functions. (3 marks each) a. y = (x + 7)3 (x - 9)4 b. y = x2-5 c. y = (23 + 4) V4x2 +2x -5 d. y = V/2x2+5 (2 + 3 ) 4 2. Use the process of implicit differentiation to find dy dx given that: 5x32 + 4x3 = 5xy Apply implicit differentiation directly without first simplifying the equation. (10 marks)

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