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Old 04-03-2013, 10:00 PM   #26
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Old 06-30-2013, 11:27 PM   #27
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Here's one I'm stuck on... it's from Calc II, so anyone here who is an engineer will have seen it before:
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Old 07-01-2013, 06:37 AM   #28
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dude I seriously don't miss any of those problems. It's been so long, like 11 years, since I did Calc II. Good luck.
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Old 07-01-2013, 06:48 AM   #29
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Consider the other one to be the numeral 1.

Only because it's hard to imagine it being some other number. Zero and one are two of the most special numbers.

I"m not actually sure how to do that notation it's calling for. My "common sense" radar just tells me that if 0 is one of the conditions, 1 is the other. I mean, what's it going ot be? 17?
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Old 07-01-2013, 07:22 AM   #30
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I always thought any derivative of zero is zero. 0 can a solution, but it cannot be a derivative because any derivative or multiple of zero is always zero.

I agree any other factor/solution has to be 1 or >1.
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Old 07-01-2013, 07:57 AM   #31
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Quote:
Originally Posted by Durango View Post
I always thought any derivative of zero is zero. 0 can a solution, but it cannot be a derivative because any derivative or multiple of zero is always zero.

I agree any other factor/solution has to be 1 or >1.
Zero doesn't get plugged into a derivative up there -- it gets plugged into the exponent of t. So t to the zero power is one.
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Old 07-01-2013, 09:43 AM   #32
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I solved it (I think) and uploaded it here:

http://www.filefactory.com/file/wf55...ocument_1_.pdf

It's gay to download, you have to scroll to the bottom where it says "slow download," hit "Download," close the popup ads asking you to upgrade your browser, and wait 20s for the timer to count down.

Note that I changed some of the variables and I didn't have time to check my math. But it should lead you on the right track.
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Old 07-01-2013, 06:25 PM   #33
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Quote:
Originally Posted by SeedReaver View Post
I solved it (I think) and uploaded it here:

http://www.filefactory.com/file/wf55...ocument_1_.pdf

It's gay to download, you have to scroll to the bottom where it says "slow download," hit "Download," close the popup ads asking you to upgrade your browser, and wait 20s for the timer to count down.

Note that I changed some of the variables and I didn't have time to check my math. But it should lead you on the right track.
Thanks, man. That was very helpful... I worked it backwards and then frontwards again and got the same thing:

ck = ck-2/k^2
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Old 07-01-2013, 06:56 PM   #34
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No worries. Helps to brush up on the math skills every now and then!
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