• Best of luck to the class of 2024 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page
MedVision ad

Notes from the marking center (1 Viewer)

Sober

Member
Joined
Dec 6, 2005
Messages
215
Gender
Male
HSC
2003
Read the notes from the marking center for 4 unit maths in 1998, question 6, part (b) (ii). Or for those who do not have it off hand:

HSC Markers said:
(i) (1 mark)
The number of marks earned by candidates in this part was usually equal to the value used for 0! in their calculation.
Is that not the saddest thing you have ever read?
 

Raginsheep

Active Member
Joined
Jun 14, 2004
Messages
1,227
Gender
Male
HSC
2005
Sober said:
Read the notes from the marking center for 4 unit maths in 1998, question 6, part (b) (ii). Or for those who do not have it off hand:



Is that not the saddest thing you have ever read?
Its only sad that 4u students don't know that 0! = 1
 

Rax

Custom Me up Scotty
Joined
Jul 30, 2005
Messages
229
Location
In the Bush
Gender
Male
HSC
2006
LOLOLOL

That is definately the funniest thing I have ever seen

Must e-mail to all the people in my maths class, even the Ext I people will get it lol.
 

~shinigami~

~Summer Song~
Joined
Nov 7, 2005
Messages
895
Location
Adelaide
Gender
Male
HSC
2007
This is gonna sound really stupid but why does 0! = 1 ?

Note: I know that it's true that 0! = 1, I just wanted to know why?

Sorry for the dumb question, it's kinda like how I know anything to the power of 0 equals one but I still don't know why.
 

zeek

Member
Joined
Sep 29, 2005
Messages
549
Location
ummmmm
Gender
Male
HSC
2006
I think its because there is only one way to arrange 0 things and that is you can't arrange them... if that makes sense :0
 

Sober

Member
Joined
Dec 6, 2005
Messages
215
Gender
Male
HSC
2003
Using n! = n(n-1)! and letting n=1:

1 = 1x0!

therefore: 0! = 1, however it stops there because when n=0:

0! = 0x(-1)!

(-1)! = 1/0 = undefined

===========================

For n0 equalling 1, consider this:

n0 = na-a = na/na = 1

Therfore n0 = 1

===========================

Factorial has actually been extended to include the complete complex plane (except negative integers), see wikipedia's entry on Gamma Function for more about it.
 
Last edited:

Riviet

.
Joined
Oct 11, 2005
Messages
5,593
Gender
Undisclosed
HSC
N/A
Sober said:
Read the notes from the marking center for 4 unit maths in 1998, question 6, part (b) (ii). Or for those who do not have it off hand:

Is that not the saddest thing you have ever read?
It's slightly sad but mathematicians should find some form of humour in reading that. :D
 

Raginsheep

Active Member
Joined
Jun 14, 2004
Messages
1,227
Gender
Male
HSC
2005
Hey.....I just realised that the questions implicitly talks about the poisson distribution.....thats sorta kool.......:p
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top