MATH 126 Midterm: MATH 126 UW Midterm 1 Winter 11bekyelExIans
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~ac(cid:12)(cid:12)(cid:12) (cid:12)(cid:12)(cid:12) (b) draw a line from the point a perpendicular to the side bc. Call the point where this line intersects bc point d. find the coordinats of point d. (3 points) < 2, 2, 3 >=< 2, 2, 3 > (c) find the area of the triangle. You can use or use the cross product, for example, 2| ~ab ~ac: the line l1 is perpendicular the plane 2x + 3y + z = 24 at the point (4, 5, 1). The line l2 is the line passing through the points (0, 2, 0) and (6, 11, 3). (a) find the vector equation for the line l1. The have parallel direction vectors so they may be parallel. Since they are not the same (for example th epoint (4, 5, 1) on the rst line is not on the second one), they must be parallel.
