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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: 106,369

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.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,705

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


Children are not defined by school ...........The Fonz
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: 106,369

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.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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: 106,369

Re: Derivative

The exponents are powers of x.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Online

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