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Hi guys For inequality induction during step 2, do we keep the inequality sign or do we swap to an equal sign? If you dont get what i mean look at the picture (inequality kept on right side, swaped to equal side on left side). In every textbook I've seen, in every hsc solution, in another...

So..... I can use either method?

Are they both hsc board of studies approved? So do I conclude with " numerically greatest term is 224/9"or "numerically greatesr terms are 224/9 and -224/9". And Which method did you use ?

Hi guys, when a question asks for the numerically greatest term, which working out do i do? so for e.g find the numerically greatest term of (1-2x)^9 when x = 1/3 My teacher says use the fitzpatrick book method which is "consider (1+2x)^9 because were finding numnerically greatest term" and...

I found this in the syllabus: Definitions of circle, centre, radius, diameter, arc, sector, segment, chord, tangent, concyclic points, cyclic quadrilateral, an angle subtended by an arc or chord at the centre and at the circumference, and of an arc subtended by an angle should be given. Two...

Hi guys, at my school my teacher says were allowed to abbreviate our reasoning so for example instead of "angle between chord and tangent is equal to the angle in the alternate segment"we can write "alternate segment theorem", instead of "angle sum of straight line" we can write "st. ln." We're...

Thanks I knew that but do you know how to do b I) and ii)?

Hi guys, for some reason the solutions were missing two pages so I wasnt sure of the answer in question a) ii) and I actually dont know how to do b i) ii) . Can someone please show me how to do b i) ii)

Hi guys, I have been doing past papers recently and I was wondering when were the last changes to the maths ext 1 syllabus? I'm asking because I want to only do past papers after the significant syllabus changes. The only syllabus changes I know are the addition of multiple choice and the...

Thanks drongoski, that helped a lot :). Carrotsticks was this question in sydney grammars paper?

Hi guys I've been stuck on question 12 of ex25d for a while now. Can anyone show me how it's done?

Oh I see, that makes much more sense. Thanks!

But CDs and DVDs aren't really "types of communication data" are they?

5.1 Identify types of communication data that are stored or transmitted in digital form My teacher said that the answer to this dot point is "anything on the computer such as CDs/DVDs". I am a bit confused, as I think the answer should be something more like "internet, phone calls and...

Hi guys , I was reading about physical and chemical changes from a variety of sources and I saw that some sources said that in physical changes, particles are rearranged while other sources it says only chemical changes involve rearrangement of particles. Im writing notes now and im really...

Thanks, youre a great explainer. Very logical working out

I am having trouble with part (ii). I know you have to use part (i) but I dont know how to properly explain

Have you ever seen a question in a test asking to prove chord of contact?

Hi guys, I know that sometimes the question will ask you to prove the parametric versions of tangents, normals and chords but I've never seen a question that asks to prove the chord of contact formula. Do we ever have to prove the chord of contact formula in tests? I find the proof a bit...

its 1/2