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1. Find the volume for the parallelepiped (BOX) formed by the vectors: a = (1,4,-7), b = (2,-1,4), andc = (0,-9,18) 2. Find the angle between the vectors: d = (2,2,-1),e = (5,-3,2) 3. Find parametric equations and symmetric equations of the line that passes through the point (5, 1,3 ) and is parallel to the vector f = (1,4,-2) 4. Compute and express your answer using only independent variables Oz Oz , and Oz z = x+xy ; x=uv+w;y=u+ve" du av Ow 5.Compute dy of the function sin( x) + cos(y) = sin( x) cos(y) dx