Using the reduction of order method to find a second solution of the following odes: (a) y" + 2y, + y = 0, y_1 = xe^-x. (b) y" + 9y = 0, y_1 = sin 3x;

The answer is part a: use

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.