calculus III

. Are the points A[1,D,2), B{,2,5), C(3,5,8), D(4,7,11) cueplanar? . Given three points A{1,. 2} 4), 3(2, 4} 9] and C(ID, 1, 7). Find the area of ABC. . Find the parametric equations of the line passing through the point A(1, [1, 3) that is perpendicular to the lines F] = (3 213,1 3t, 3 + 4t} and F2 = (2t,1 + t,1 2t} . Calculate the distance from the point M(1? 2, 3) to the line given by m 3 5 = 2y1 = 32+4