Exam 1 Fall 2013 - -minute Exam SECTION NAME No books notes calculators or other electronic devices may be used Turn o and put away cell phones Explain

Exam 1 Fall 2013 - -minute Exam SECTION NAME No books notes...

  • Lehigh University
  • MATH 023
  • Test Prep
  • KelseyL761
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Math 23 60-minute Exam—September 26, 2013 NAME: SECTION No books, notes, calculators, or other electronic devices may be used. Turn off and put away cell phones. Explain all answers fully, and put boxes around your final answers. If there is any work on the back of the page that you want to have considered, be sure to indicate this very clearly on the front of the page. Leave expressions such as 2 and π in that form. Evaluate trig functions of simple angles. Perform obvious simplifications of answers. There are 8 problems. Problem 1 /12 points Problem 2 /12 points Problem 3 /15 points Problem 4 /8 points Problem 5 /12 points Problem 6 /14 points Problem 7 /12 points Problem 8 /15 points Total Points /100 points 1
2 1. [12] For each of the following, either say “Not meaningful,”“Scalar,” or “Vector,” depending on what it equals. Herea,b,c, anddare vectors in 3-space, and·represents dot product ofvectors.i.a×(b×c);vectorii.a·(b·c);not meaningfuliii.a·(b×c);scalar

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