HSC Mathematics Marathon (1 Viewer)

[hup]

show that



for all

without the use of induction

 

[bobthebuilder94]

i was gonna do an awesome proof where i differentiate it and then do some amazing stuff....but then realised my maths is too limited can't differentiate 1/x!

 

[slyhunter]

i was gonna do an awesome proof where i differentiate it and then do some amazing stuff....but then realised my maths is too limited can't differentiate 1/x!

?

 

[AAEldar]

?

He's talking about the factorial, which there is no derivative of.

 

[mitchy_boy]

show that



for all

without the use of induction

n! grows faster than
assuming constant x.

therefore true

this is a troll question

 

[mitchy_boy]

Find the coordinates of the focus of the parabola .

 

[ohexploitable]

Find the coordinates of the focus of the parabola .

srsly?

 

[mitchy_boy]

srsly?

This is 2unit m8, go back to your gen maffs.

 

[mitchy_boy]

it was the first question i found in a book on my floor

 

[hup]

n! grows faster than
assuming constant x.

therefore true

this is a troll question

its doable

 

[cutemouse]

show that



for all

without the use of induction

1/n! = 1/(n(n-1)(n-2)...(3)(2)1) < 1/(2*2*2*...*2*2*1) = 1/2^(n-1) for n>=3. QED

 

[hup]

1/n! = 1/(n(n-1)(n-2)...(3)(2)1) < 1/(2*2*2*...*2*2*1) = 1/2^(n-1) for n>=3. QED

whats qed

 

[slyhunter]

QED: quod erat demonstrandum

Latin for "which was to be demonstrated". Usually placed at the conclusion of a mathematical proof.

 

[hup]

wtf did u do. i dont follow

list out

3>2
4>2
...
n>2

multiply

3x4x...xn>2^(n-2)
1x2x3x....xn>2^(n-1)
he just did it in one step

 

[Trebla]

Suppose that



Use the results



and



to show that

.

 

[seanieg89]

 

[RANK 1]

u're supposed to give a new question after answering one.....

 

[apollo1]

ill post one on behalf of seanieg

 

[AAEldar]

ill post one on behalf of seanieg
View attachment 23329

I don't have another question though... I'll try find one somewhere >.<

 

[seanieg89]