sol2 - Bflath.2l63 Jeff Mermin’s sections, Quiz 2,...

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Unformatted text preview: Bflath.2l63 Jeff Mermin’s sections, Quiz 2, September 8 go) o'l‘long 1. (2 points each) Indicate whether the following statements are true or false. (“'I‘rue” means “Always true”, “false” means “sometimes false” or “possibly false” Justify your answers. Write out the whole word “true” or “false” . x, y, z are vectors in R3. (a) x-y=y,'>,& Solu‘llOA l>7 an anonymcag gl—«len'l‘: (a) x-Y=Y'x- Truc. Passe, 7-751 a? ’He book Lon‘leIS +49, Proa¥s¥0f PPDPer'll'65 o; 1")“. 00+ P/OdVCJL— Proolt number 1 is q-Jo‘lb 7566412) +0 bJo'l'q- (b) xxyzyxx. 7 if 7 V ViSVOlQZl‘loh by Each E-Hef‘i PM“ The Fouwinj slu’rc meal m“ be diserooFed §eveml wags, Fusl, =——I 1a; look at m “SM laml Mg, m riakt lid/ml rule, M b: usml Fér “055'?”ng lcls assault, {F .30.) CF95; )‘ Wu 5 and when 1,5473 (Elli) 3w}- thL 509’; 40 fhc r-Ifl h}. vcll I‘F SW 6113; 33040 X V5913 (1H!) abut h‘mb should ’10)”? .‘n h,‘ anDS-yif d‘rgd.Aq cage alt ‘l’hc Cross Pm'vc‘s 0‘ 7H3 and Uxx ’\ 4.5 Cal-“(fl 1115: wc can 6 J . A H ‘l‘ ¢L+\)~3(0\*l‘<(-\) ’ 1? as Baa can sac 1x3 and 8X ’,‘°r mama/o xrgw _ X=(l,|,l> “\Ufil /\ 3) v9.53)” 5:3",Tmrofbm x15? 31X=VEI \: rlL‘lS‘GLO)*/RCl): _‘ “5 Fake (c) (xxy)><z=xx(yxz). Solo‘l'I‘OA lay «Dr. FUNcl-ipn IE”: . , FAME flan g 7 (e ylx (2.09 imH 637:! (gidfiéwfl‘éfiJfi “TLB xsllli, ll is 23L3 I \\ llshl unolu "pm Prrlks ,C m 3.0+ Prolual 0" [Mac 77‘1- (e) lX-YI S lxllzl- Sold+i0A an anonymous S-kJJt-n‘f: Fame. 1W3 \p/C W GTI WM, (AU die/Ww‘yw} Ln u.wa E \g QRW f5, “Wigwam (I; 35 {mSn’cL’ z‘fd émm-a . _\J 2. (5 points) Let w, x, y, and z be vectors in R3. Determine whether the expressions below are vectors, scalars, or nonsense. Explain. (a) ((x+y)-Z)-W SO\O+;On V§k+or';o\ H-AK‘f.’ (a) (x+y_)\:3-w fisz-Z "W (éa&wu+émfl&AAow (b><x+(y.xz»><w ( $010+.” by ’THEoDoR 65:35.): \ VLcAw C\'*?)’ V'edFJ .. Vtcki *wcwr = Vtcw’ (c) x-((y+z)-W) Tina Is no nag/«gt bl; (31*23'V’)\ hawk n fiéazlflkf (o (+ me 5:. atom! Wm { [\JceJ We With“) era dH'PIOJMHP, (d) xx (y-(z-W)) So‘dhon b7 CHI-Effie» gajer'. M on r; {,WQQI . {,3 {ha \wm m. 63st WWW/MC; , 3A}, 5": {Vi . V 3 C30“; 34X & é’ {3L {it‘%€§;t/€& {Aim a 91%? {EM ’ :8 K (am-var"? C “333, jmmkilév‘v‘; :1» :21? L *0 9L wk. ‘3 g _ (e) (x-y)(z x w) So\u+ion Sec-m UcJes’. kaur' “a t. A 64A Z, xCJ 3 a. V c cA CV MW 3: ‘ _. —— _ \ (Sra‘aA (Vt/6‘ 06 , @1ny M 3. (5 points) Let x = (1, ——2, 1) and y : (3,—1,2). (a) Compute x-y. gob-H94 KQVIA Bank-5P: 3W 3 comm ‘ZX—IMLLDLZX (b) Compute x x y_‘ "‘7 r \\i_, i : 3+Z+Z :E \ ‘ Extra Credit (3 points): Find the surface area of the parallelepiped with vertices (0,0,0), (0,0, —1), (5, 4, 3), ( 4,1, 2), (5, 4, 4), (~4, 1, —3), (1, —3, —5), and (1,—3, —6). S 010+;0n ES‘Hur \1 o \“nsoq: 0C9“) +3176”, WT“ ...
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This note was uploaded on 10/11/2011 for the course MATH 2163 taught by Professor Staff during the Fall '08 term at Oklahoma State.

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sol2 - Bflath.2l63 Jeff Mermin’s sections, Quiz 2,...

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