3. Describe whether the first order type: Linear or Exact and then solve to find the general solution using appropriate method. (a) [2x + y cos(4xy)]dx + [x cos(4.xy) – 2y]dy = 0 %3D (b)x² + 1) +xy x:

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Q: a) Find a function f such that f'(x) = 4x2 – 2x – 1 and f(-1) = 2 %3D 2x b) Find the function g such…

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A: The detailed solution is as follows below:

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