MATH HELP NOW

[Jf Thunder]

A is the numerator.Take L.C.M. and make it all one term.I typed fast and made some mistakes in last steps.See my post again.

i dont get it?

 

[jarves]

i dont get it?

Apply U/V rule.
Vdu/dx-udv/dx
v^2

(x+1)/x-lnx
x^2

x+1-xlnx
x(x+1)^2

.......................................

second part is even more tough,i doubt you would be able to grasp it.Better you ask your teacher.

Consider Numerator(x+1-xlnx) as another function and draw its graph and see where does it touches x axis.After that you have to use some theorms such as mean value theorem e.t.c.

 

[Multani]

Let A= (x+1)-xlnx
B=(x+1)^2 *x

After differentiating you will get this.......
A/B
Equate this to o.
Which means A=0
(x+1)-xlnx=0
(x+1)=xlnx
(x+1)/lnx=x
Proved.

Sorry to say but Your Maths is damn weak.

@JFThunder

you still did not solve the question

 

[jarves]

you still did not solve the question

Are you kidding me??

 

[Multani]

anyone can do the first part

 

[jarves]

anyone can do the first part

I have solved the second part also,Read all my posts

 

[OrionHunter]

and yes my math is shit

My math is worse! I dunno wtf you guys are talking about!

This looks all Greek to me!

I'm outta here!

 

[jarves]

@JFThunder Ask @Multani if you have any problems because my mother will kill me if stay on this forum for 15 more minutes.

 

[Star Wars]

gimme picture, not of yourself, pic of the question

 

[Jf Thunder]

@JFThunder Ask @Multani if you have any problems because my mother will kill me if stay on this forum for 15 more minutes.

dude what? why?

Apply U/V rule.
Vdu/dx-udv/dx
v^2
(x+1)/x-lnx
x^2

x+1-xlnx
x(x+1)^2

.......................................

second part is even more tough,i doubt you would be able to grasp it.Better you ask your teacher.

Consider Numerator(x+1-xlnx) as another function and draw its graph and see where does it touches x axis.After that you have to use some theorms such as mean value theorem e.t.c.

wait were not supposed to add them, using the product rule, is that the product rule?

 

[Multani]

dude what? why?


wait were not supposed to add them, using the product rule, is that the product rule?

that is the quotient rule

 

[kbd-raaf]

Mate, head to:

Wolfram|Alpha: Computational Knowledge Engine

 

[Jf Thunder]

that is the quotient rule

are they not the same?

 

[Multani]

are they not the same?

no. Product rule is used when two functions are multiplied

Quotient rule is used when two functions are divided

But you can mix them

Are you doing A Levels?

 

[Jf Thunder]

no. Product rule is used when two functions are multiplied

Quotient rule is used when two functions are divided

so just bring it up, make its power in negative and apply product rule