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September 21, 2025, 01:24:11 pm
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Author Topic: any14sex questions  (Read 2595 times)  Share 

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any14sex

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any14sex questions
« on: April 02, 2009, 05:54:24 pm »
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Copied from itute trial exam
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TrueTears

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Re: any14sex questions
« Reply #1 on: April 02, 2009, 05:59:35 pm »
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for question 1

If the 2 functions insect, then they must intersect on the line y = x

since they are inverse functions

so



solving using quadratic formula yields Hence E
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pHysiX

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Re: any14sex questions
« Reply #2 on: April 02, 2009, 07:52:38 pm »
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for the second one, my guess is E

10 = 5 x 2

Hence








« Last Edit: April 02, 2009, 08:00:12 pm by pHysiX »
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TrueTears

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Re: any14sex questions
« Reply #3 on: April 02, 2009, 08:01:35 pm »
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pr0 physix, damn didn't recognise to split the 10 !!!!!
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kamil9876

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Re: any14sex questions
« Reply #4 on: April 02, 2009, 08:20:28 pm »
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Prime factors again ;)
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TrueTears

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Re: any14sex questions
« Reply #5 on: April 02, 2009, 08:24:09 pm »
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Quote from: kamil9876 on April 02, 2009, 08:20:28 pm
Prime factors again ;)
lol yeah, I gotta start taking more note of them :P
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kamil9876

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Re: any14sex questions
« Reply #6 on: April 02, 2009, 09:17:08 pm »
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hah I don't think it's that important. I don't think it appears in VCAA exams. I've heard that Itute questions are a bit too much sometimes.
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bigtick

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Re: any14sex questions
« Reply #7 on: April 02, 2009, 09:32:48 pm »
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all log laws are important
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shinny

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Re: any14sex questions
« Reply #8 on: April 02, 2009, 10:40:01 pm »
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Yeh I'm pretty sure VCAA could quite possibly put a question with logs and indices of that level =\
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kamil9876

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Re: any14sex questions
« Reply #9 on: April 02, 2009, 10:50:14 pm »
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I was referring to identifying prime factors since coincidentally, there was a question on logs me and TT discussed once and the cleverest solution involved splitting the numbers into prime factors. This happened to be the case here, coincidentally, and when i said "it's not that important, VCAA doesnt have it etc." it was in response to TT's claim that he ought to start recognizing prime factors more often. So I was only referring to recognizing prime factors, not logs(they are important, i agree). In fact 5 and 2 being prime were not significant in this question. It could've been 10*6=60
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Re: any14sex questions
« Reply #10 on: April 02, 2009, 10:57:23 pm »
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What is the relevance of 'I've heard that Itute questions are a bit too much sometimes'?
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Re: any14sex questions
« Reply #11 on: April 03, 2009, 09:37:58 am »
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Quote from: bigtick on April 02, 2009, 10:57:23 pm
What is the relevance of 'I've heard that Itute questions are a bit too much sometimes'?

The difficulty of Itute questions are often [if not always] above VCAA's standards.
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Re: any14sex questions
« Reply #12 on: April 03, 2009, 10:45:10 pm »
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Quote from: Mao on April 03, 2009, 09:37:58 am
Quote from: bigtick on April 02, 2009, 10:57:23 pm
What is the relevance of 'I've heard that Itute questions are a bit too much sometimes'?

The difficulty of Itute questions are often [if not always] above VCAA's standards.

Not to mention TSFX's trial papers...
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pHysiX

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Re: any14sex questions
« Reply #13 on: April 04, 2009, 09:10:08 am »
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yes! i agree about tsfx. they are bloody imba! i find itute too easy for some reason *i must be retarded* haha
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