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#1 2012-10-25 07:56:55

PrissyMiss
Member
Registered: 2012-10-25
Posts: 6

Derivative

f ' (x) = x + (sqrt (3x))
            -------------------
               3x − 5

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#2 2012-10-25 08:01:57

zetafunc.
Guest

Re: Derivative

What do you need help with exactly?

#3 2012-10-25 08:15:55

PrissyMiss
Member
Registered: 2012-10-25
Posts: 6

Re: Derivative

I need to find the derivative of the function

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#4 2012-10-25 08:17:22

zetafunc.
Guest

Re: Derivative

Do you know the quotient rule?

#5 2012-10-25 08:17:32

PrissyMiss
Member
Registered: 2012-10-25
Posts: 6

Re: Derivative

so far I got to the point                    .5           -.5     
                                             -4.5x     - 7.5x      - 5
                                            ----------------------------
                                                                2
                                                      (3x-5)

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#6 2012-10-25 10:16:15

PrissyMiss
Member
Registered: 2012-10-25
Posts: 6

Re: Derivative

I do know the quotient rule

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#7 2012-10-25 16:34:22

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,240

Re: Derivative

Hi;

so far I got to the point                    .5           -.5     
                                             -4.5x     - 7.5x      - 5
                                            ----------------------------
                                                                2
                                                      (3x-5)

I can not read that.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#8 2012-10-25 19:12:02

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,426

Re: Derivative

hi   PrissyMiss and bobbym

I'm thinking that means

It is not quite what I'm getting:


PrissyMiss: You seem to have lost the root 3 s.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#9 2012-10-25 19:23:33

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,240

Re: Derivative

Hi Bob;

Your answer is what I am getting too.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#10 2012-10-26 08:10:16

PrissyMiss
Member
Registered: 2012-10-25
Posts: 6

Re: Derivative

Why are the exponents still in there after you put it in radicals?/

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#11 2012-10-26 08:21:10

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,240

Re: Derivative

The exponents are powers of x.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

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