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maths question: am i doing this right? maths question: am i doing this right?
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Old 04-27-2002, 09:58 AM   #1 (permalink)
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maths question: am i doing this right?



Sorry its really hard for me to write this out on the keyboard so heres another image of my working for it



(I havent done ii yet.)

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Old 04-27-2002, 11:45 AM   #2 (permalink)
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ohh I have no idea..Hopefully i'll just give you a helpful bump. (Besides..You don't really want me helping you with your math!! LOL)
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Old 04-27-2002, 11:50 AM   #3 (permalink)
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LOL mike, same here
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Old 04-27-2002, 12:05 PM   #4 (permalink)
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oh btw i wrote it down wrong, i wrote a.b instead of a.c at the end.

cos i'm a gimp. still wondering if its right tho!
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Old 04-27-2002, 07:41 PM   #5 (permalink)
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i is correct c = the square root of 8

ii I'm not sure about. I read the formula you posted as a times the quantity a plus b plus c equals zero, which is patently impossible!
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Old 04-27-2002, 07:46 PM   #6 (permalink)
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Oops! for vector quantities a+b = -c so a+b+c = zero

a times zero obviously equals zero

<edit> cr@p...that's not right either.

OK...I'm lost. </edit>
Last edited by caddmannq; 04-27-2002 at 07:59 PM.
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Old 04-27-2002, 08:07 PM   #7 (permalink)
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What class is this for?
I suck at Geometry stuff
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Old 04-27-2002, 09:17 PM   #8 (permalink)
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Phhhht

I have no clue. I failed Algabra in school with a F,F,I,F for the for marking periods.

Good for a bump though

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Old 04-27-2002, 09:30 PM   #9 (permalink)
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What's the dots mean? Does a.c. mean "value of side a multiply by value of side c"??

A bump for ya!

BTW, if that's what a.c. means, then I think a.c. = 4 x square rt. 2
Last edited by ben-the-slacker; 04-27-2002 at 09:34 PM.
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Old 04-28-2002, 05:33 AM   #10 (permalink)
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a.c means Vector "a" times Vector "c" (a1 x b1 + a2 x b2) but as a and c arent given you have to work it out a roundabout way.
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