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Hi all, Under which category, (reliability, accuracy, validity) do these fall under? 1. ensuring high precision through repetition. (when I googled precision it defined it as accurate?) 2. removing the outlier 3. drawing a line of best fit 4. minimising experimental error I'm...

This is probably actually 2U, but since I thought of this while doing a 4u question, I placed it here :) (feel free to move it if required) Suppose for any triangle, you find a point such that x = y (refer to below diagram) would alpha = gamma? (i.e. would a line drawn from it it bisect...

For module B, some of us have to write essays that require 3 or more prescribed texts. e.g we may be asked to compare 3 speeches or 3 poems So how would one go about structuring their essay on this? (and the 3 texts have to be compared evenly, unlike AOS/Module C where you can focus less...

Can we do this: RTP 1/a^2 + 1/b^2 + 1/c^2 >= 27 (cambridge q. ex 8.1 q8) given a + b + c = 1 and a>0, b>0, c>0 Consider: (a^2+b^2+c^2)(1/a^2 + 1/b^2 + 1/c^2) >= -54(ab+bc+ac) which is true (I think ..) since RHS is negative whereas LHS is positive >= 27(-2(ab+bc+ac) >= 27(a^2+b^2+c^2 -...

This is a MX1 problem, but I came across this while doing Terry Lee's 4u book... if a = 10-v^{2} , and initially v = \sqrt{5} m/s at x = 0 , find v in terms of x and describe its resultant motion Textbook's solution: a = 10-v^{2} v\frac{dv}{dx} = 10-v^{2} \int \frac{v}{10-v^{2}}...

Just the last part thanks :) (iii)

I know many selective schools give out their atar estimates with the half yearly report but what about other schools? are they required to release atar estimates or is this a selective school only thing? (just wondering because I think my school does not seem to release them) :(

This has been on my mind for a while, but I never bothered to ask an explanation For the general solution: cos\theta = 0 Using the yr11 formula, we should get \theta = 2\pi n \pm \frac{\pi}{2} But some textbooks have: (cambridge) \theta = \frac{\pi}{2} + \pi n (iirc) Why does this...

is there a reason why textbooks all do: t = tan\frac{x}{2} \frac{dt}{dx} = \frac{1}{2}sec^{2}\frac{x}{2} \frac{dt}{dx} = \frac{1}{2}(1+tan^{2}\frac{x}{2}) \frac{dt}{dx} = \frac{1}{2}(1+t^{2}) dx = \frac{2dt}{1+t^{2}} instead of: t = tan\frac{x}{2} tan^{-1}t = x/2 2\frac{dt}{1+t^{2}} = dx...

How would you do it for this? Textbooks only teach you the repeated linear factors. But what about the non-linear ones? Someone please clear this up for me Thanks :)

Hi Everyone Please estimate my atar :) School rank: 370s. Was <300 year before Adv eng Overall 89% Rank 1/23 No HY MX2 Overall 93% Rank 1/8 HY 93% MX1 Overall 98% Rank 1/16 HY 97% Chem Overall 97% Rank 1/26 HY 94% Phys Overall 96% Rank 1/24 HY 95% Eco Overall 92% Rank 1/18 HY 89% (=2nd for this)...

"Analyse the effect of protectionist trade policies on the Australian economy" Someone please explain what this question is asking for. It seems ambiguous to me. Also how would you structure this essay? I wrote a rough draft and now looking back I have a feeling it's not even answering the...

Also explain your answer please :)

I've been stuck on this question for a few hours now :mad: Someone please help me

Please answer this and explain your answer: If the electron in a cathode ray tube was travelling at 0.2c, qualitatively predict how mass and time for the electron would vary in the laboratory frame of reference and the electrons' frame of reference. any responses would be welcome :)

Hi Assess: Make a judgement of value, quality, outcomes, results or size Evaluate: Make a judgement based on criteria; determine the value of Don't these two terms basically ask for the same thing? (for humanity/science subjects)

Lately I've been watching anime (a LOT actually) and I realised that this probably isn't the best thing to do. I don't want to go back to playing computer games either. And I'm not the sporty type - so any form of exercise is completely off the table. Any ideas to pass time? (besides...