Question

With a linear system is it possible to have one solution when there are 3 variables and 3 equations?

Answer 1

x=y==z=0
i guess

Answer 2

meaning that x y and z all equal zero?

Answer 3

bt u shud cnfirm frm others i m nt too sure

Answer 4

zarkon will help u best

Answer 5

Usually, a system with the same number of equations and unknowns has a single unique solution.

x + 3y -2z= 5
3x+ 5y+ 6z= 7
2x + 4y + 3z = 8

x = −15, y = 8, z = 2.

Answer 6

i guess rld meant that all variable wud have same answer, i guess i interpreted wrong

Answer 7

Sorry, I read the question wrong

Answer 8

no u were correct zed LOL :D

Answer 9

ahh keep in mind that those equations need to be independent

Answer 10

hahaha rld ,me=dumb :P
lol cudnt understand the ques

Answer 11

cld have not been clear but i will show u my problem and maybe u guys can help me

Answer 12

I need help with question #50

Answer 13

ok i ll

Answer 14

value of a,b,c =0, hey it has a unique solution

Answer 15

i guess im rite in tis case

Answer 16

it is impossible to make that one have no solutions

Answer 17

zarkon jus tell what is the answer to 50

Answer 18

ok what abt one solution???

Answer 19

oh dont be mean to zarkon hehe

Answer 20

it always has one solution

Answer 21

so zarkon im rite?

Answer 22

lol my typo was a bit mean cox on adjacent window i have my chemistry buk opened hence i m typing very fast

Answer 23

(0,0,0)



so pick any a,b,c you want

Answer 24

so does it have an infinite amt of solutions?

Answer 25

no i mean this equation shud b termed as that i has unique solution ?

Answer 26

it has the same solution no matter what you pick for a,b,c

the answer is x=y=z=0

Answer 27

oh ya ok

Answer 28

rld i guess it shud b termed as unique sol

Answer 29

oh ok got that

Answer 30

Thanks zarkon

Answer 31

np

Answer 32

And wasquiss LOL :D

Answer 33

Zarkon u such a late nighter lol

Answer 34

yep...not for much longer though...I go back to work next work

Answer 35

oh that is too bad

Answer 36

it is fun to go ack to work after a long break

Answer 37

fun....hmmm...not sure I'd use that term


I don't care for the first week. meetings/ getting syllabi ready/ adjusting to my normal work schedule

Answer 38

2nd week is usually better than the first

Answer 39

ohhh u must be an old geezer. I see u dont like change. only reg routine

Answer 40

so that makes me old:)


how old do you have to be to be old?

Answer 41

over the half a decade mark!!
My dad wld kill me if he heard me saying that

Answer 42

decade?

Answer 43

like decade is a 100 so half a decade is 50
so basically over 50

Answer 44

that is really young :)

Answer 45

century

Answer 46

decade is 10

Answer 47

oh ya my bad

Answer 48

lol

Answer 49

ok...so I'm not old yet

Answer 50

oh so then u r in like ur 40s

Answer 51

no

Answer 52

even younger oh man. u r getting me comfused here

Answer 53

u cant be younger than 30

Answer 54

I'm not

Answer 55

ya like u kind of seem mature and older than the maj of users here

Answer 56

how old are you?

Answer 57

oh i am young LOL :D

Answer 58

How old do i seem?

Answer 59

I'm a really poor guesser

Answer 60

ok i am 20

Answer 61

well I'm almost 2 times your age

Answer 62

ohhh happy buhday rld :)

Answer 63

that is what i thought

Answer 64

39

Answer 65

http://openstudy.com/study?F1244386577014CXZG1N=_#/updates/4f1278cee4b0a4c24f584a0e
zarkon check if im rite

Answer 66

i was kind off but i was close lol

Answer 67

thnaks wasquiss

Answer 68

so r u a math proff?

Answer 69

he is i guess

Answer 70

what do you think

Answer 71

yaaaaaa u answer very clearly and u know every answer

Answer 72

like i wld place u on the same level as james

Answer 73

u guys are comparable

Answer 74

maybe I work in industry ...maybe I work at burger king and I just do math on the side ;)

Answer 75

we are in different fields though

Answer 76

lol maybe and if u do then u wasted ur talents

Answer 77

james works in finance something lol

Answer 78

could be...you never know :)

Answer 79

are u trying to tease me?

Answer 80

you are 40 and great at math and u work at burger king at that cash?!?!? u cant fool me

Answer 81

39

Answer 82

lol he wont reveal full truth :P

Answer 83

oh ok will let u be a year younger

Answer 84

zarkon I am great at keeping secrets

Answer 85

I am an associate professor of mathematics...I have a phd in mathematical statistics

Answer 86

wowwwwwwwwwwwwwwwwwwwww

Answer 87

statistics????? y didnt u become an actuary?

Answer 88

because I didn't ;)

Answer 89

what does an associate professor mean?

Answer 90

it is just a rank

Answer 91

assistant prof/associate prof/prof

Answer 92

OH man so I am gi know u zarkon lol

Answer 93

*glad

Answer 94

I don't have enough time at my current position to be considered for full professor

Answer 95

ya but sometimes assistant prof works harder than prof

Answer 96

they sometimes have too...they are working to get tenure