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andrewloppol

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« on: November 04, 2010, 12:04:30 pm »
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« Last Edit: September 04, 2015, 03:54:30 am by andrewloppol »
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nbalakers24

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Re: Derrick Ha mistake in methods book?
« Reply #1 on: November 04, 2010, 12:07:15 pm »
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x'+1
then divide by minus three
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nbalakers24

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Re: Derrick Ha mistake in methods book?
« Reply #2 on: November 04, 2010, 12:08:14 pm »
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Quote from: nbalakers24 on November 04, 2010, 12:07:15 pm
x'+1
then divide by minus three

wait.. im not sure now. wouldn't it be -x'-1?

is that what you picked up?
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nbalakers24

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Re: Derrick Ha mistake in methods book?
« Reply #3 on: November 04, 2010, 12:09:20 pm »
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yes i think so
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #4 on: November 04, 2010, 12:11:31 pm »
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DERRICK HA MAKE NO MISTAKE
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #5 on: November 04, 2010, 12:21:57 pm »
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UNWISE TO CHALLENGE DA 99.95
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #6 on: November 04, 2010, 12:26:17 pm »
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Lol yeah it's wrong. missing a minus
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #7 on: November 04, 2010, 12:54:44 pm »
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Quote from: andrewloppol on November 04, 2010, 12:34:36 pm
Quote from: 99.95_for_sure on November 04, 2010, 12:26:17 pm
Lol yeah it's wrong. missing a minus


he does it twice :P whatta noob

also, his book never mentions inverse matrices lol..


Yeah i think you can avoid them by using easier/quicker methods? not sure
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taiga

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Re: Derrick Ha mistake in methods book?
« Reply #8 on: November 04, 2010, 01:01:38 pm »
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SHUDDUP DERRICK IZ GOD
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stonecold

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Re: Derrick Ha mistake in methods book?
« Reply #9 on: November 04, 2010, 01:07:36 pm »
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Can someone please explain how on earth he gets the graph in Exam 1 2010 Q7b  ?

Surely VCAA won't put this shit will they?
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #10 on: November 04, 2010, 01:10:46 pm »
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Quote from: stonecold on November 04, 2010, 01:07:36 pm
Can someone please explain how on earth he gets the graph in Exam 1 2010 Q7b  ?

Surely VCAA won't put this shit will they?

You're expected to know how to draw graphs like x^(1/3). 7b is a hence question where you just reciprocal it. And just take care in that the denominator cannot be 0 and thus there lies an asymptote
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stonecold

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Re: Derrick Ha mistake in methods book?
« Reply #11 on: November 04, 2010, 01:11:38 pm »
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But the denominator is different to 7a, and I tried to manipulate it but can't get it to be the same...
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #12 on: November 04, 2010, 01:13:10 pm »
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There's a minus on the top, and the bottom is minus'd, they cancel out?
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98.40_for_sure

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Re: Derrick Ha mistake in methods book?
« Reply #13 on: November 04, 2010, 01:25:16 pm »
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Quote from: stonecold on November 04, 2010, 01:11:38 pm
But the denominator is different to 7a, and I tried to manipulate it but can't get it to be the same...

Um i dunno how to show it but... im pretty sure if you times the top and bottom by -1 you'd get the same thing
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stonecold

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Re: Derrick Ha mistake in methods book?
« Reply #14 on: November 04, 2010, 02:00:26 pm »
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So (-(x-1))^1/3 + 2 is the same as-(x-1)^1/3 + 2

???

I thought they were different.  :S

I am so dead...
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