MATH 126 Midterm: MATH 126 UW Midterm 1 Spring 14rothvossExIans
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Dd 12:30-1:20 by bo peter a exercise possible score. All other electronic devices (including graphing calculators) are forbidden: unless otherwise indicated, your answers should be exact instead of dec- 4 is an exact answer and is preferable imal approximations. For example to its decimal approximation 0. 78: unless otherwise indicated, show your work and justify all your answers. Solution: we have ab = (3, 4, 0), ac = ( 1, 7, 1) and. Then the area of the triangle is half the area of the parallelogram spanned by. Solution: we know that for this angle , we have cos( ) = ) 0. 7952 45. 56 , which we can round to 46 . Solution: we have pq = ( 1, 0, 4) and pr = (3, 1, 0). Next, p ~n = 5 ( 4) + 2 12 + 1 ( 1) = 3. 4x + 12y z = 3: the plane from above intersects the xz-plane in a line.
