Math_20C_Summer_2010_HMWK_1

# Math_20C_Summer_2010_HMWK_1 - Math 20C(Shenk Summer 2010...

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Unformatted text preview: Math 20C (Shenk). Summer, 2010. Homework 1. Section 12.1: 5, 9, 29, 39, 58, 59 Section 12.2: 5, 9, 19, 25, 27, 31, 39 Section 12.3: 1, 13, 19, 23, 41, 61, 71 Section 12.4: 5, 11, 13, 31, 34, 41, 43, 47 Section 12.5: 1, 11, 13, 15, 21, 23, 44 Section 11.1: 13, 20 Section 13.2: 3, 7, 13, 45, 55 Section 13.3: 1, 3 More problems to be turned in: 1. Three vertices of the parallelogram in the drawing below are P = (3 , 4) ,Q = (7 , 8), and R = (12 , 2). Find the coordinates of the fourth vertex S without using vectors. Then find them by using vectors. x y P (3 , 4) Q (7 , 8) R (12 , 2) S Answer: S = (16 , 6) 2. A bucket of water is supported by two ropes fastened at the same point on the handle. The forces by the ropes on the bucket, relative to xyz-space with an upward pointing z-axis, are F 1 = ( 3 , a, 6 ) (pounds) and F 2 = ( b, − 4 , 5 ) (pounds). What are the numbers a and b ? How much does the bucket weigh?...
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## This note was uploaded on 08/31/2011 for the course MATH 20C taught by Professor Helton during the Spring '08 term at UCSD.

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Math_20C_Summer_2010_HMWK_1 - Math 20C(Shenk Summer 2010...

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