Mathematics: Post your doubts here!

[Amy Bloom]

there is an option beside post reply which is upload a file. then click on it and select the image u want to upload.

It says to insert a URL, which one do i insert and from where???

 

[Amy Bloom]

It says to insert a URL, which one do i insert and from where???

I just solved it mentally, coz i'm short of time. use ur calculator where appropriate.
the first derivative is dy/dx = 6e^x - 3e^3x
0 = 6e^x - 3e^3x
Let e^x be y
So, u shall get 6y - 3y^3 = 0
Factorise, 3y (2 - y^2) = 0
Solve: y = 0 and y= root of 2
Substitute e^x = 0 and e^x = root of 2
Use ln or logarithms to base 10 to solve for x, i think u can continue now.
Best of luck and have a gr8 day.

 

[parthrocks]

It says to insert a URL, which one do i insert and from where???

I guess u may have pressed the media button but its the button of upoload a file on the right hand side under the dialog box in which u are now typing,,,,,,,,,,,,,

 

[parthrocks]

I just solved it mentally, coz i'm short of time. use ur calculator where appropriate.
the first derivative is dy/dx = 6e^x - 3e^3x
0 = 6e^x - 3e^3x
Let e^x be y
So, u shall get 6y - 3y^3 = 0
Factorise, 3y (2 - y^2) = 0
Solve: y = 0 and y= root of 2
Substitute e^x = 0 and e^x = root of 2
Use ln or logarithms to base 10 to solve for x, i think u can continue now.
Best of luck nd have a gr8 aday.

Hello amyhiii!!!!!!!1hi how are you???
its e^x=0 which u said it and the other one should be 6-3e^2x=0 when u solve it...............................
and hey @shanki631 its a maximum point on the curve where x=0.427...........................????is it correct?

 

[parthrocks]

It says to insert a URL, which one do i insert and from where???

Hey and do u want me to attach a scan???or u will do it?

 

[Amy Bloom]

Hello amyhiii!!!!!!!1hi how are you???
its e^x=0 which u said it and the other one should be 6-3e^2x=0 when u solve it...............................
and hey @shanki631 its a maximum point on the curve where x=0.427...........................????is it correct?

Err What? I don't get u. I wanted to substitute e^x by y for it to be easier to solve.

 

[Amy Bloom]

Hey and do u want me to attach a scan???or u will do it?

I'm just sending off some ideas to help shanky to do it. U can send urs or solve it completely for him if u wish.

 

[Amy Bloom]

I guess u may have pressed the media button but its the button of upoload a file on the right hand side under the dialog box in which u are now typing,,,,,,,,,,,,,

I usually do my drawings on paint, coz my scanner's got some problem at the moment and can't work. it says that it cannot upload a bitmap image. How can i upload an image anyways?

 

[parthrocks]

I'm just sending off some ideas to help shanky to do it. U can send urs or solve it completely for him if u wish.

But you are more experienced as I know.....You are a genious!!

 

[parthrocks]

I usually do my drawings on paint, coz my scanner's got some problem at the moment and can't work. it says that it cannot upload a bitmap image. How can i upload an image anyways?

Ohhh ya see the document that u made....the paint file open it...and then click save as and then save it as format:-JPEG and then upload it only then it will get uploaded.................BITMAP files are not allowed here

 

[Amy Bloom]

But you are more experienced as I know.....You are a genious!!

I'm neither genius nor robot. Just a simple student.

 

[parthrocks]

I'm neither genius nor robot. Just a simple student.

Ya I agree with that!!!lolzzzzzzzzzzzzz

 

[Amy Bloom]

Ohhh ya see the document that u made....the paint file open it...and then click save as and then save it as format:-JPEG and then upload it only then it will get uploaded.................BITMAP files are not allowed here

Okay thanks.

 

[shanky631]

Hello amyhiii!!!!!!!1hi how are you???
its e^x=0 which u said it and the other one should be 6-3e^2x=0 when u solve it...............................
and hey @shanki631 its a maximum point on the curve where x=0.427...........................????is it correct?

the ans is o.35

 

[parthrocks]

the ans is o.35

Ya is it 0.3465735903???

 

[shanky631]

Ya is it 0.3465735903???

ya dude now plz attach scan na

 

[parthrocks]

ya dude now plz attach scan na

Is it ok if I attach at 6:45 or 7:00 pm..???cos my ipod is with my sis!!ok

 

[shanky631]

in part b of the same question, did u get maximum bcoz the value is around -16.99??

 

[parthrocks]

in part b of the same question, did u get maximum bcoz the value is around -16.99??

Rounding it off as 0.347 ya correct u got that cool

 

[parthrocks]

Rounding it off as 0.347 ya correct u got that cool

So no need of scan now na?