3. Determine a value for k such that the two planes are coincident. -x-3y+z=-27 3x + k²y + kz = k* k a. 3 = b. x=-2 C. d. -3 x = 4. Which of the following is the parametric equation of the line with vector equation = (1,2)+s(2,4), SER? a. x=2t, y=4t, t = R C. x=t+1,y=4t+ 2, t = R b. x=4t+ 2y = 2t+1, tЄ R d. none of the above

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