## mariomintchev 2 years ago need help with this matrix problem............

1. mariomintchev

2. mariomintchev

@experimentX @TuringTest

3. mariomintchev

you basically have to fill in the blanks

4. mariomintchev

the first blank is 1

5. experimentX

I am having hard time reading it ... could you simplify the problem? how much is your matrix?

6. mariomintchev

do you want me to make it a PDF?

7. experimentX

no ... how much is your matrix?? what are it's rows and columns ...

8. mariomintchev

2 1 0 5 0 8 3 0 1 6 0 9 -4 0 0 7 1 10

9. experimentX

so what are you going to do? I think the R2 will be R2/3

10. mariomintchev

yeah i was thinking that too. i'm having a hard time getting the 2nd, 3rd, 5th and 6th blanks.

11. experimentX

i really don't like it ... first it makes R1 zero, then R3 zero and then make R2 = 1 It it had asked to make R2 = 1 first ... then R1 = R1 - 2R2 and R3 = R3 + 4R3

12. experimentX

if ... R2 is not make 1 first then, your answer should be R1 = R1 - 2/3 R2 R3 = R3 + 4/3 R2

13. mariomintchev

so our goal was to get a 1 and a 0 in that first column?

14. experimentX

yes

15. mariomintchev

16. mariomintchev

what would the 2nd blank be?

17. mariomintchev

it's not -2 or 1

18. mariomintchev

im thinking we have to make it a zero but how would we do that

19. mariomintchev

@experimentX

20. experimentX

wow ... could you post snapshot?

21. mariomintchev

idk what that is lol

22. experimentX

make a picture and upload it .. instead of that excel file. I hate to download it.

23. mariomintchev

24. mariomintchev

heres a PDF of it

25. experimentX

isn't this yesterday's Q?

26. mariomintchev

lol no, its another similar one

27. mariomintchev

i need the second and third blanks... the 2nd blank is not -2 or 1

28. experimentX

-3/2 on first ... rest is okay.

29. experimentX

don't post pdf too ... use pictures. jpg, png, or gif files ... they are easy.

30. mariomintchev

ok, thanks.

31. experimentX

yw