First Principles.. (1 Viewer)

[blake]

Is it examable?

 

[Enigma17]

umm, i dont think its examinable in 2u mathematics, but i think its examinable in 3U, or extension 1, whatever...

its really easy though... just start from basics... like this a triangle...

 

[googy_1985]

We learnt it in yr 11 in 2 unit masths, although I have never seen it in a catholic or HSC paper .

 

[lazychic]

it is examable!

cos our teacher tells us that we'd get Q's on first principles in da HSC so we gotta know it..

 

[Minai]

I vaguely remember it
the f(x+h), limits crap

 

[Lazarus]

Yes, both differentiation and integration from first principles are examinable.

Differentiation (example):
..lim.......f(x+h) - f(x)
h -> 0............h

Integration (example):
Integral[sqrt(r^2 - x^2)] between -r and r
Use A = (Pi*r^2)/2.

 

[Lazarus]

Remind me as to what that chapter encompassed?

 

[Lazarus]

You definitely need to know how to do that, although you wouldn't get more than two or three marks devoted to such questions in the actual exam.

 

[blake]

When I did 3u maths in year 11, my teacher said that it wasnt examiable for the HSC but he was going to exam it

 

[manly girl]

I can honestly say I have never seen Integration First Principals.

 

[Morgues]

all you do is substitute, expand, cancel out and then get rid of the hs because their all approaching 0

 

[Enigma17]

okkkkkkayyyyyyy then.. looks like i was wrong... maybe you do need to know first principles....

 

[blake]

from the phoenix book there isnt a single question on first principles..

 

[Lazarus]

It is examinable for the HSC and it's in a few of the past HSC papers (98, I think? can't remember).

Integration from first principles is not often taught, and it's only been asked twice - once in an HSC paper and once in a Catholic trial paper. Both questions involved the integral in the example I posted above, where you were given the equation of a semicircle. You can't integrate it normally, because the function under the square root sign is not linear, but you can use the formula for the area of a circle to calculate an equivalent answer.

 

[Angelic_Angel88]

Hmmm...

I think it would be best to know it, even though it has only been in two papers

It is, however, very hard to remember

 

[fishy89sg]

1st princples is fun

 

[acmilan]

Thanks for bumping a 4 year old thread to tell us that, champ

 

[SoulSearcher]

1st princples is fun

O






K.

 

[fishy89sg]

O






K.

LOL it is...

 

[UzurOger]

hmm seems ive completely forgotten about this thanks for the bump fishy