perplexus.info :: Calculus : Maximum Value

Maximum Value (Posted on 2002-06-19)

We have :

      x^2+xy+y^2=3 and
      y^2+yz+z^2=16
      A=xy+yz+zx

Find the maximum value of A. Find x, y and z when A=max value.

(Remember the category)

See The Solution Submitted by vohonam

Rating: 3.2857 (7 votes)

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re(2): Oooo... Getting schmancy, are we?

| Comment 5 of 19 |

> grad[g1(p)] = {2x + y, x + 2y, 0}

Not to give away my ignorance or anything, but what's a grad[]?

Posted by levik on 2002-06-19 07:48:07

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