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Classical Algebra = fail


Classical Algebra = fail

Postby Chris Edwards » Oct 28, 2003 @ 10:43pm

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Postby Maf54 » Oct 28, 2003 @ 10:52pm

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Postby David Horn » Oct 28, 2003 @ 11:24pm

Crosswind technique: "Using your peripheral vision, react to body movements, gasps, groans, and shouts from the other side of the cockpit, and always remember that it's better to be lucky than good."
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Postby NYIllustrator » Oct 28, 2003 @ 11:33pm

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Postby Chris Edwards » Oct 28, 2003 @ 11:34pm

Sure...

#1: (worth 4 marks)

Let p be prime and let a,b be integers. Suppose that p|a and that p|(a^5 + b^5). Show that p|b.

#2: (worth 9 marks)

Find the complete solution to the nonlinear congruence:
x^10 + 2x congruent to 3 (mod 77)

There are a few others... The test was mostly proofs... I got 0/4 on the first one and 2/9 on the second one :).
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Postby James S » Oct 28, 2003 @ 11:36pm

Yeah, I got a 69% on my Political Science mid-term, and I studied for 6 hours.

I blame my accutane, as it absolutely kills my retention.
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Postby James S » Oct 28, 2003 @ 11:48pm

#1

a=a^5 + b^5
a - a^5 = b^5
{fifth root of}(a - a^5) = b

??? Is that what they want you to do?
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Postby sandmann » Oct 28, 2003 @ 11:50pm

I hate math.
The fates lead him who will;
Him who won't, they drag.

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Postby Chris Edwards » Oct 28, 2003 @ 11:56pm

no, they want you to show that p divides b if p is prime, and p divides (a^5 + b^5) where a and be are integers...

I hate proofs.
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Postby Maf54 » Oct 28, 2003 @ 11:57pm

I too hate proofs.
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Postby Mike Bannick » Oct 29, 2003 @ 1:05am

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Postby sponge » Oct 29, 2003 @ 1:54am

holy internets batman.
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Postby Chris Edwards » Oct 29, 2003 @ 2:04am

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Postby ktemkin » Oct 29, 2003 @ 2:32am

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Postby sponge » Oct 29, 2003 @ 2:34am

holy internets batman.
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