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OfflineTrancedShroom
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Calculus problem again
    #5758631 - 06/16/06 08:30 PM (17 years, 7 months ago)

Well my fuck up proffessor didn't tell us how to do a derivative problem like this, can anyone help?

The derivative of:

y=x + squareroot(x)


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OfflineNashbar
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Re: Calculus problem again [Re: TrancedShroom]
    #5758698 - 06/16/06 08:50 PM (17 years, 7 months ago)

oh, come on. that's first day stuff


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OfflineNashbar
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Re: Calculus problem again [Re: Nashbar]
    #5758703 - 06/16/06 08:51 PM (17 years, 7 months ago)

dy/dx=1+1/2*x^-1/2


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OfflineNashbar
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Re: Calculus problem again [Re: Nashbar]
    #5758707 - 06/16/06 08:53 PM (17 years, 7 months ago)

helping kids with summer school  :smile:

on a friday night  :smile:


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OfflineTrancedShroom
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Re: Calculus problem again [Re: Nashbar]
    #5758750 - 06/16/06 09:04 PM (17 years, 7 months ago)

Thanks, not to piss you off, but the x in the denominator has a positive exponent (1/2).

Also if I could get help on this one:

Derivative of

(4+x)/(1-4x)

Please!!!


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OfflineChurning
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Re: Calculus problem again [Re: TrancedShroom]
    #5758772 - 06/16/06 09:12 PM (17 years, 7 months ago)

the answer of the first is as he said

second is deriv of -4x^2 - 15x + 4 so....
-8x - 15 is the answere


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OfflineNashbar
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Re: Calculus problem again [Re: Churning]
    #5758841 - 06/16/06 09:36 PM (17 years, 7 months ago)

:smile:


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Invisiblephalloidin

Registered: 07/03/04
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Re: Calculus problem again [Re: Churning]
    #5758973 - 06/16/06 10:22 PM (17 years, 7 months ago)

Quote:

Churning said:
the answer of the first is as he said

second is deriv of -4x^2 - 15x + 4 so....
-8x - 15 is the answere



that's what I thought at first too. look carefully and you'll notice the / in there. anyways, its simple quotient rule. derivative of top * bottom - derivative of the bottom * the top all over the bottom squared.

you get -15/(1-4x)^2


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Offlinecoda
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Re: Calculus problem again [Re: phalloidin]
    #5759172 - 06/16/06 11:25 PM (17 years, 7 months ago)

fuck man, i just took a calc exam today.  Just wait til you get to differentiation, i had a problem that took up a whole page of paper today. :smile:


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To get really high is to forget yourself. And to forget yourself is to see everything else. And to see everything else is to become an understanding molecule in evolution, a conscious tool of the universe. And I think every human being should be a conscious tool of the universe. . . .

-JG

i really am glad you came back to us instead of taking the other path. *hug*

-A_S (RIP your final words to me will never be forgotten)



Don't fuck with the laughing jesus.


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Invisibleblacksabbathrulz
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Re: Calculus problem again [Re: coda]
    #5759247 - 06/16/06 11:41 PM (17 years, 7 months ago)

Quote:

coda said:
fuck man, i just took a calc exam today.  Just wait til you get to differentiation, i had a problem that took up a whole page of paper today. :smile:




I fucking hated my ordinate differential equations class. That class sucked ass.


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InvisibleGumby
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Re: Calculus problem again [Re: TrancedShroom]
    #5759452 - 06/17/06 12:27 AM (17 years, 7 months ago)

Quote:

TrancedShroom said:
Well my fuck up proffessor didn't tell us how to do a derivative problem like this, can anyone help?

The derivative of:

y=x + squareroot(x)




y'= 1 + [(1)/(2)(squareroot x)]


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Invisibleblacksabbathrulz
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Re: Calculus problem again [Re: Gumby]
    #5759461 - 06/17/06 12:30 AM (17 years, 7 months ago)

Quote:

Gumby said:
Quote:

TrancedShroom said:
Well my fuck up proffessor didn't tell us how to do a derivative problem like this, can anyone help?

The derivative of:

y=x + squareroot(x)




y'= 1 + [(1)/(2)(squareroot x)]




Nah, you got the 1 part right, the answer should be y=1 + 1/2 x^-1/2

I could be wrong though, it's been a while.


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InvisibleGumby
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Re: Calculus problem again [Re: TrancedShroom]
    #5759470 - 06/17/06 12:32 AM (17 years, 7 months ago)

Quote:

TrancedShroom said:
Thanks, not to piss you off, but the x in the denominator has a positive exponent (1/2).

Also if I could get help on this one:

Derivative of

(4+x)/(1-4x)

Please!!!




u'v-v'u/v^2...

(1)(1-4x)-(4)(4+x)/(1-4x)^2... you simplifiy.


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