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LaGrange Multipliers - Finding Maximum or Minimum Values

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Uploaded by on Apr 7, 2008

LaGrange Multipliers - Finding Maximum or Minimum Values using Lagrange Multipliers. An outline of the general procedure along with a concrete example are shown. For more free math videos, visit http://PatrickJMT.com

Austin Math Tutor, Austin Math Tutoring, Austin Algebra Tutor, Austin Calculus Tutor

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Uploader Comments (patrickJMT)

  • thank you so much, you explain it so simply, its perfect!

  • @CatchPhraseLingo wonderful : )

  • yeah seriously, i know i've said this before and everyone else on this video has, but i seriously love you. i'm going to find a way to worship you in real life.

  • @ApostasyXVIII a shrine with some candles works

  • I will spread the gospel of Patrick the Great!!!!!

  • @lobsidedballs thanks! tell everyone you meet about the videos. EVERYONE!! : )

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  • A hero. A hero, I say!

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  • Legen...wait for it.......DAry!

  • i love you

  • This is better than my colleges in my native tongue!

  • Thank you!!! Finally, I got an idea on what to do on our Lagrange assignment! :D

  • THANK YOU! wow, away with lecturers in uni!

  • @lXxxAXMAGxxXl Isn't that the case with a constrained minimization problem which involves inequalities?

  • In my homework I had f(x,y)=3x-2y with the constraint g(x)=x^2+2y^2=44. After solving, my x values were +6 and -6 and my y values were +2 and -2. My question is, how do I figure out the order to put those values into the original function to find the answer? I tried to put them in like f(6,2)=3(6)-2(2) to get max= 14 and f(-6,-2)=3(-6)-2(-2) to get min = -14 and I got it wrong (it's min = -22 and max = 22). Any ideas? My final is tomorrow and this is one of the only things I am stuck on.

  • Up all night studying for my vector calculus final in the morning. You rock, dude!

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