Anyone good at math?

[Lt Fresh]

Hey I was wondering if anyone here is really good at math.

I'm having a little bit of an issue with my math homework.
-I'm in calc 3 and if you can help it would be AWESOME!!!!!

I'm doing Lagrange multipliers

I have to find the maximum and minimum values of f(x,y) = 3 x + 3 y + z, subject to the constraint x^2 + y^2 + z^2 = 9, if such values exist.

If anyone can help it would be greatly appreciated

 

[papisarze]

2....

 

[MinatoFLASH]

Dude what grade u in?

 

[Rodukaime Namikaze]

2+2= yes

 

[MinatoFLASH]

Calc 3!!?????!!!?

:whoa:

Dude I am in geometry 1 and i suck at it.

 

[~MC117~]

I hate math so much, Im glad I dont have that class anymore U_U sorry I suck at math so I can't help

 

[Lt Fresh]

Dude what grade u in?

I'm a Junior

 

[bestevawuz]

Calc 3 wtf? Where I live we have pre-calc than calc ab calc bc ap calc

 

[Sharingdork]

Hey I was wondering if anyone here is really good at math.

I'm having a little bit of an issue with my math homework.
-I'm in calc 3 and if you can help it would be AWESOME!!!!!

I'm doing Lagrange multipliers

I have to find the maximum and minimum values of f(x,y) = 3 x + 3 y + z, subject to the constraint x^2 + y^2 + z^2 = 9, if such values exist.

If anyone can help it would be greatly appreciated

-_- you can't figure out how to do your homework, so the most logical thing is to make a thread about it? Don't you know what Facebook is for?

 

[Lt Fresh]

-_- you can't figure out how to do your homework, so the most logical thing is to make a thread about it? Don't you know what Facebook is for?

Yea I'm asking some friends on facebook as well. I thought maybe someone could possibly help here as well. Just a thought idk

 

[Konan Uchiha]

I barely understand Algebra 2.. sorry dude, cant help!

 

[ackeem1992]

looks like alien to me, don't have a clue, weren't you paying attention when the teacher was teaching it?

 

[gamahiro]

[gama]1355[/gama]

 

[Izuna Uchiha]

Give me 5 minutes.

 

[Lt Fresh]

Give me 5 minutes.

Alright then

 

[Venus]

Max for xy is 2
Min is 1 unless you use decimal places.

I think.

 

[Izuna Uchiha]

It's been a while since I did Lagrance's multipliers so double check my math to make sure I didn't make any mistakes.

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[Venus]

It's been a while since I did Lagrance's multipliers so double check my math to make sure I didn't make any mistakes.

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O_O I shouldn't have bothered to even attempt. xd

 

[Lt Fresh]

It's been a while since I did Lagrance's multipliers so double check my math to make sure I didn't make any mistakes.

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So you got your x=y and z=(1/3)x

Thats what I did, Then from there you would plug your x,y and z into the original function to get your max and min. I'm guessing from your work that each variable has a positive and negative outcome right?

But thanks, it looks right. Thats what Ive been doing

 

[Izuna Uchiha]

So you got your x=y and z=(1/3)x

Thats what I did, Then from there you would plug your x,y and z into the original function to get your max and min. I'm guessing from your work that each variable has a positive and negative outcome right?

But thanks, it looks right. Thats what Ive been doing

Yes, I didn't bother with the plus and minus after simplifying my root but they're there.

If the maths are good, you should be able to figure out the rest from there.

Post again if you need help, I love those problems.

O_O I shouldn't have bothered to even attempt. xd

Lmao, at least you tried to help, kudos ^^