MATH 215 Midterm: exam1w13
Document Summary
This is a 90 minutes closed book exam. This examination booklet contains 4 problems, on 14 sheets of paper including this front cover. The next to last page is a list of formulas which you might nd useful. The last page is blank and is to be used as scratch paper. Feel free to tear these last two pages away from the rest of the exam, but be careful to tear only those pages. Make sure your nal answer is clearly written in the corresponding answer box. Let p = (0, 1, 2), q = (1, 0, 1) and r = (2, 2, 2) be three points in r3. (1) find the length of the longest side in p qr. The length of the longest side in p qr is. Your answer: (2) find the cosine of the largest angle in p qr. The cosine of the largest angle in p qr.
