MATH 126 Final: MATH 126 UW Final Exam Winter 2011
Document Summary
Ta"s name: this exam contains 9 problems. Check that you have a complete exam: this exam is closed book. 2 11 sheet of notes and a non-graphing, scienti c calculator. Do not share notes or calculators: give your answers in exact form. Page 3 of 9: (10 points) decide if the following are true or false. You do not need to explain your answer. (a) The vectors < 1, 2, 1 > and < 2, 1, 3 > are orthogonal. (b) If two lines in space are not parallel, then they intersect at some point in space. (c) The set of points {(x, y, z) : x2 + y2 = 1} is a circle. (d) In a contour graph of z = f (x, y), the contour lines corresponding to di erent values do not intersect. (e) The cross product projuv u = 0 for any two vectors u and v. (f)
