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Maths Extension 1 Predictions/Thoughts (3 Viewers)

coolcat6778

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The t-formula



is only valid when t is actually defined.

Notice that there are certain angles where t is undefined. So it possible your trig equation happens to work for those undefined values of t, in which case using the t-formula will only retrieve a subset of the full solutions.
yo could you update the website to use svg latex instead? https://latex.codecogs.com/
 

Geniusly

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Y'all, just confirming, for binomial distribution questions, is it fine if you use either sample proportioning method or the count method to solve the q's, particularly to obtain z-scores?
Thanks
They both work out to give the same z score, but if the question is clearly a sample proportion (says something like 'A random sample of 50 boxes from the 200 were tested' or something like that), then use the sample proportion method just in case.
 

Allan Mekisic

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Last year 9 marks were allocated to inverse functions so probably little on this today. I’m expecting a difficult polynomials question, lots of mechanics and maybe a difficult binomial proof in Q 14. Also they have never asked a plane or object suspended from a ceiling in ext 1 although it’s in the syllabus. They didn’t ask this in extension 2 this year or last year so may be something for today.
 

v.tex

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Last year 9 marks were allocated to inverse functions so probably little on this today. I’m expecting a difficult polynomials question, lots of mechanics and maybe a difficult binomial proof in Q 14. Also they have never asked a plane or object suspended from a ceiling in ext 1 although it’s in the syllabus. They didn’t ask this in extension 2 this year or last year so may be something for today.
feel like there will still be a bit of inverse tbh
 

BionicMango

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I start with question 11 which is usually easy. I leave the MCQs until last. Q 8, 9 and 10 are usually difficult and time wasting. You don’t want to be stressed 15 minutes into the exam.
Interesting strategy, I did something kinda different.
Basically, during reading time I started with reading the short/long answer questions and once I had finished those I started reading the multiple choice, answering them as I go.
 

v.tex

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I start with question 11 which is usually easy. I leave the MCQs until last. Q 8, 9 and 10 are usually difficult and time wasting. You don’t want to be stressed 15 minutes into the exam.
Yeah I think doing MC first was my downfall in ext 2
 

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