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I know that I use Lagrange multipliers when I have constraints ..
Is there any example for my case to follow up .?
Thanks in advance
Hi, I would like your help in the following problem
Locate all relative maxima, relative minima and saddle points, if any, for the function
$$
f(x,y,z)=1-x^2-y^2-z^2
$$
thanks a lot for your help!
Hi all, I have a problem with probabilities but I can't solve it.
The problem is :
"I have 3 folders. A folder of them has a letter while the others are empty.
The probablity to find the letter in the folder, if we touch the top of the folder is p_j , if there is letter in this folder.
We check folder 1 and we did not touch the letter.
Which is the possibility the letter to be inside the folder 1 ??"
I don't understand, the possibility is 1/3 again I think.
Could you help me please ??
thanks a lot
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