proof of nCr by induction? (1 Viewer)

[Rahul]

any point in knowing that?
or would it be out of the scope of the syllabus

 

[freaking_out]

Originally posted by Rahul
any point in knowing that?
or would it be out of the scope of the syllabus

maybe they can put it in last question...its prolly just worth a look.

 

[Rahul]

good idea, but chances are q7 will be projectile motion. its like everywhere in the last few yrs...

 

[enak]

Nah, last year was binomial diff and int

 

[KeypadSDM]

Originally posted by Rahul
good idea, but chances are q7 will be projectile motion. its like everywhere in the last few yrs...

How right you were. Lol.

So, what are next week's lotto numbers?

 

[Giant Lobster]

actually, how do u prove nCr by induction? I got to step 3 and found that its impossible to proceed (for me ) without using either the definition of nCr (choosing n from r etc) or the algebraic expression for nCr, which is what ur trying to prove in the first place.

 

[Constip8edSkunk]

cambridge has it i think...

 

[Rahul]

its in fitzpatrick, for sure.

 

[Fosweb]

Its in Maths in Focus also if i remember correctly.

 

[~*HSC 4 life*~]

huh? im lost...whats nCr?

 

[KeypadSDM]

And you're doing 3 unit?
Superscript n - Capital C - Subscript r
It's combinations.

 

[Grey Council]

no need to offend. If he/she doesn't know, leave him/her be.

 

[Rahul]

they havent covered it yet.
we did combinations/permutations very late in the yr.

nothing to worry abt hsc4life

 

[~*HSC 4 life*~]

yeah i do 3 unit...obviously haven't covered it yet! ...phew

i saw induction (which ive done) but then nCr confused me

cool...carry on then