MHB Multivariable optimization with constraint

  • #51
I would state the actual extrema values (which I gave earlier), as well as where they occur.
 
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  • #52
Hello,
Thanks Mark,Jameson,Zaid! For helping me with this problem! and taking your time:) problem solved but I will try later today this problem again without that lamda way (tomorow:))
 
  • #53
You had mentioned not knowing how to handle differentiating the product of 3 functions, and here is a formula you may use:

If $f(x)=f_1(x)f_2(x)f_3(x)$ then:

$f'(x)=f_1'(x)f_2(x)f_3(x)+f_1(x)f_2'(x)f_3(x)+f_1(x)f_2(x)f_3'(x)$

For practice, can you derive this formula from the product rule for 2 functions?
 

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