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n 9 Given Rn = 3 COS 3 , express the limit as n -> co as a definite integral, that n n n is provide a, b and f(x) in the expression a a 0 X 6 1 x, f(x) = 4(3 + 4x ) cos (3 + +x x syntax error.\fUse part I of the Fundamental Theorem of Calculus to find the derivative of f(a:) = f 31 x/t3 + 13dt f'(m) = 3313 x [NOTE: Enter a function as your answer. Make sure that your syntax is correct, i.e. remember to put all the necessary (, ), etc. ] Use part I of the Fundamental Theorem of Calculus to find the derivative of F(a:) = [55111023422 [NOTE: Enter a function as your answer.]