Econ 11 --help me.. someone anyone?

Colleges & Universities A-Z University of California - Los Angeles
1

<p>i need help with one of my econ 11 problem sets...... i keep getting weird answers .</p>

<p>Unconstrained Optimization (2exogenous variables)</p>

<p>find the values of (x1,x2) that maximizes the expression </p>

<p>y=20 x1^(1/4) x2^(1/4) - x1- x2</p>

<p>When i take the partials with respect to x1 and x2, i get another double variable equation, it doesnt help me when i set it equal to 0 because the answer is too boggly to make sence.</p>

<p>anyone have any suggestions?</p>

2

<p>It's normal to get another equation with 2 variables. You're left with 2 equations and 2 unkowns, which makes it possible to solve.</p>

<p>Take partials and then solve for x1, then plug in x1 into the second partial. That's it. Then you get x2, which can then be plugged into the first partial. I just tried it and got x1 = 25, not sure if it's right though, since I've had a lot of wine tonight :)</p>

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<p>really, thats what i did, i got some weird liek root10 of x1 of root x2...... hmmm will try again. Thanks (because 25 and 50 i think are the answers)</p>

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<p>where did you get the answers from? Is there a solution's manual?</p>

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<p>I had no idea that Econ courses were filled with math.
Wait, you are a math / econ major, though.</p>

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<p>that is econ 11. </p>

<p>so far its ALLLLL Math. .. its like hardcore calc 1/2 econ word problems. ...</p>

<p>and i am math /econ major, but the econ courses are the same as for any other econ major. </p>

<p>there actually IS a solutions manuel, but i do not have it. its hard to come by..... there was a similar problem so i think that the problems might be correlated but solved in diff ways.</p>

<p>anyways, i did it and i got 25 and 25.</p>

7

<p>I have the solutions manual. Feel free to shoot me an offer. Luckily my prof didn't use the book problems.</p>

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<p>there are answers to odd numbered problems in the back of the book.
this problem was not in the book.</p>

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<p>nikkei,</p>

<p>Econ is ALL math.</p>

<p>The best economists are also great mathemeticians.</p>

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<p>:/</p>

<p>i am thinking i am going to change my major to cosmetology.</p>