q15_v2_sol

q15_v2_sol - MAC1140-24 Quiz 15: Sections 10.3 and 10.4...

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Unformatted text preview: MAC1140-24 Quiz 15: Sections 10.3 and 10.4 (Version 2) Question 1: (2.5 points) [10.3.33PT]Selectkthe matrix which is in reduced row echelon form ir- Wrna W lambs) (STU-5.1. @009 w " lm o in, rt c rm r E“) 02®®T>Lmlbhol L filial W154. Q 051G) (~- Lu lo \m 0 l“ Lt m :llu. ~3ou Jam " None of these - [—34 '23] Question 2: (2.5 points) [10.3.4aPT]Choose the correct :1), y, or 2 value for the solution of the SYStem nah 4. ln EL? 2x+4y—102=-—2 n” 2. Ll »I0 -1 _r1:_1-5 at o 3x+9y-2lz=0—>aHi8 -Z\ 0 'rb: \ 54.11 x+5y—12z=1 g ~ll l O 2 -5 l r 2:2 Ers‘l". zl/y'mina‘b. f.L ln F51 r :3 r1/2 * i 2 —5 —| 4—1.4 —.z 5-; r y:-2 W5 \lh 5 "l (l3 r; l b' 42 II. r y=2 rs [jg-51‘ r o 5 q z ’ 33=—2 ——> L0 2 ‘5' i lg: *Ql/‘W‘m‘q‘h 3) (‘n Question3:(2.5points) O 3’ "jl 9- rb T52“ O '4’ l5 '5 \L )it‘2-5-l] 2g: 0 G—IHA 10.4.1aPT 2 —'| ‘ lo 51 —5 ' .A. [ ] O O L i . o 0 .L r Mr 7 Z: A , Ckck'w: r x—2y '9 0Q} “5.2;: l ' Xlifilli’: Elli-35%;}; » —\ ~ _ — . a k = ' + - =" - — +( “3‘ +5,“-') X +J-‘2L5-‘5'l:-l * ~Q —.'1l=0 V/ - — 433 - -‘J ->x:.. -pmm'dzus/ o 5z—10y P 2y—m Question 4: (2.5 points) [lO.4.2aPT]Select the solution given by Cramer's rule for the following system, where 5 —2 3 —2 —2 3 5 —2 3 D=31—2A=31—ZB=33—2C= 1—23 —1—2‘3 1—13 5 —2 —2 3 1 3 _1 6% 6;) ® ® 5m—29+3z=—2 b “’2 (5 ’2 3a:+y—2z=3 5 i —;L 5 m—‘2y+3z=—1 [L ,1 3) ._| ®©® r y=D/B D_5—2& 2%)) r Fla/C 1)? L 431-; am, - w N_ F None of these 13‘ E“ ® ® ® r y=C/D D=5_15=E> o yzB/D ll 5 5—1 :1.‘4 3 Extra-credit question: (1 point) [10.3.1aPT]Choose the echelon form of the following matrix- [—3 1 4] h. (Elfl‘m'm’l 5 "1 En‘ ‘ Tc, \wLH‘L $3 _4 r; 5g: -15 5- "lo leacln'yjcm. in. P [1 O l5 3 ‘ll Mela raw)cls\;1cld_ 010 o In -22. r 1 m» . [1 0 3-, ] g'ml’llgtl" O 4- —ll J"by; 0 1 -—11 f 51"? 7 *2 r). l. 100 alo®~n Cu '10:" r o 10 _ Lo \ -l‘. 1 0 «kLW‘J‘Li m 9-" r [0 g A] -13, 21-1 W 1 0 1.7 r1. 0 p“ P [01 I] ll 0 5 ...
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This note was uploaded on 05/23/2011 for the course MAC 1147 taught by Professor Nuegyen during the Spring '11 term at FSU.

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