MATH 126 Midterm: MATH 126 UW Midterm 1 Fall 11taggartExIans
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Version alpha: (6 points each) (a) answer: (cid:18)3, 3 (cid:19) (b) answer: 5x + 8y + z = 21. 2. (a) (4 points) answer: x = 2 + 2 t, y = 2t, z = 2 (b) (6 points) answer: 2 t: (4 points each) (a) hint: note that the angle between p q and qr is 60 . 4 (c) answer: the second, fourth, and fth statements are true: answer: top left (b); top right (c); bottom left (a); bottom right (d) 3 (cid:19) (a) (2 points) answer: (cid:18)2, (b) (2 points) answer: (cid:18) 5 2, , this is the circle with center (cid:16) 7.
