The expression (-14 + j3)-2/5 has how many roots? A. 1 B. 3 C. 2 D. 5 j2 1+j 3 1 0 j4 315 5 Determine the value of 1-j A. 2 + j30 B. 2-j30 C. 3-j40 D. 3+ j40 Which of the following is not a solution of the linear system of equations x + y + z = 4 2x-3y+4z33 3x-2y-2z = 2 A. 2 B. 5 C. -3 D. 4 Solve the equation y" - 6y' + 9y = et. A. C₁e³t Cate³t + 1/4et B. C₁e³t + C₂te³t + 1/2et C. C₁e³t + C₂te³t - 1/2et D. C₁e³t + C₂te³t - 1/2et

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