wyseguy2663 wyseguy2663

25-05-2023
Mathematics

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2. Let y₁(x) = e-*cos(3x) be a solution of the equation y(4) + a₁y (3³) + a₂y" + a3y + ay = 0. If r = 2-i is a root of the characteristic equation, a₁ + a2 + a3 + as = ? (a) -10 (b) 0 (c) 17

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