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Question 7 Find T3 (a ): the Taylor polynomial of degree 3 of the function f (x) = cos(5x) at a = 0. T3 (2 ) = Submit QuestionQuestion 9 Find the order 3 Taylor polynomial T3 () of the given function. f(z) = (3x - 2) 2 at a = 2. T3(20) = Submit Question. Question 14 Estimate cos(0.4) using a Maclaurin polynomial of degree 4. The value of cos(0.4) is approximately Submit