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AP Calculus Unit 2 You Try #8 Name:_____________________ Directions: Use a Pencil, Show Your Work, and Circle Your Answers 1. Find the local linearization, L( x) f (a) f (a)( x a) , of the given function at the given input value a. Use the local linearization to predict the function’s output value at a + 1. Compare the predicted value L(a 1) with the actual function value f (a 1) and calculate the error. a) f ( x) 4 x , at a = 0 c) f ( x) 1 1 , at a 2 x 3. Complete five iterations of Newton’s method for the given function using the indicated initial guess. f ( x) sin x x 1 , x0 = 1 b) f ( x) ln x , at a = 1 2. Complete five iterations of Newton’s method for the given function using the indicated initial guess. f ( x ) 3 x 2 2 x 4 , x0 = 1 4. Solve the equation x ln x 2 by applying Newton’s method to the function f ( x) x ln x 2 . 5. Consider the fourth degree polynomial function, f ( x) 4 x 4 12 x3 11x 2 3x . a) Show that the zeros of f are in arithmetic progression and find the common difference. b) Show that the zeros of the derivative of f are also in arithmetic progression and estimate the common difference.