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Okay thanks :) Good to know... I don't want my pen to waste ink.

Question: Find the square roots of -21 + 20i My solution: root (-21 +20 i ) = root [ (2)^2 + (5i)^2 + 2 (2) (5i) ] = +- (2 + 5i) Is this acceptable? My concerns involve the shortness of the solution. I expressed -21 + 20i as a perfect square (it is pretty clear to me) and so I am able to obtain...

Hey year 6 was harder than the earlier years of high school for me. Those arranging words in alphabetical order tasks... T_T Hard stuff.

ಠ_ಠ easy there...

You're always on carrot -_- 24/7 support service

Looks very appealing...

Did you watch the finale today? So sad to see the show end.

Yes environmental influences affect intellect but that doesn't explain some young prodigies who seem to alienate their own parents and surroundings. There must be some sought of gene or something (not really a bio person) that affects this area; and perhaps they were mutations of such gene...

Just being pedantic, but is the restriction on k necessary? We defined n to be a positive integer; thus if n = k, then k would be a positive integer.

LOL Im laughing.

Damn, serious LOL How did I fail it t_t

[Try before looking at comments!] Apparently only 20% of people get this right; how many F's are this in image? https://www.dropbox.com/s/s6e093gv69q35g0/Count%20the%20Fs.PNG

So from the question, you have: 1/x^a = 1/n After cross multiplying, n = x^a hence log_x(n) = a

IQ tests do not measure "hereditary intelligence" imo

Interesting design tho

Bam im a prophet!!! LOL

o: o:

Re: HSC 2013 2U Marathon How did those accents come about? I've never even seen them :'( Only like the different level derivatives: y', y"

Re: HSC 2013 2U Marathon what are these dots above x's

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