preeh4oretFlMikushe preeh4oretFlMikushe
  • 19-11-2016
  • Mathematics
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A rectangular pen is made with 100 m of fencing in three sides. The fourth is a stone wall. Find the greatest possible area of such an enclosure.

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syed514
syed514 syed514
  • 20-11-2016
Subsititue the values inthe area formula which is
A= L (100-2L) = 100L-2L^2

after that you'll need to maximize this quadratic. Maximus and minimus of quadratics occur at the vertex. FInd the vertex and the y-coordinate is the maximum area
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