For all the problems below, just find the correct solution form for the particular solution to the differential equation if the method of undetermined coefficients were used. No need to solve for the coefficients in the particular solution. Just write the particular solution form with A0, A₁, A₂, etc. left in it. Problem 1 (Exercise 2.6.64) x" - 2x'+x=1² et x" -7x' + 12x=t5e4t Problem 2 (Exercise 2.6.65) Problem 3 (Exercise 2.6.75) x" + 25x = cos 5t

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