MATH 230 Midterm: Test 1 spring 2014
15 Feb 2019
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Instructions: read each problem carefully, write legibly, cross o anything you do not wish graded, write in complete sentences, this exam has 13 pages and 8 problems. Please make sure that all pages are included: you may not use books or notes, you have 60 minutes to complete this exam, do not write at the very edges of the page. Good luck: (12 pts, 2 each, the area of the triangle spanned by two vectors a and b in r3 is. True / false: let a, b, and c be three vectors in r3. If a (b c) = 2, then. True / false: if a point in the plane has polar coordinates r = 2, = 2 /3, then it has rectangular coordinates x = 1, y = 3. True / false: the equation = /4 in spherical coordinates de nes a cone.
