anonymous
  • anonymous
F(x,y) = x^3 - y^3 - 2xy + 6 the critical points i obtained are (0,0), (2/3,2/3) and (2/3, -2/3), but the solution for the critical points are (0,0) and (-2/3,2/3). did i made any mistake somewhr?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
*solution gvs (0,0) and (-2/3,2/3)
anonymous
  • anonymous
mayb i should provide my workings also?
experimentX
  • experimentX
Must be some calculation error http://www.wolframalpha.com/input/?i=3x%5E2+-+2y+%3D+0%3B+-3y%5E2+-+2x+%3D+0

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anonymous
  • anonymous
omg.. now i see it. LOL
anonymous
  • anonymous
its the diff wrt y, missed out the - ._.
anonymous
  • anonymous
sry for the fuss
anonymous
  • anonymous
erm, so when\[x=-\frac{2}{3},\]\[y ^{2}=-\frac{2}{3}(-\frac{2}{3})\]why y=2/3 only?
anonymous
  • anonymous
shouldnt it be + - ?
anonymous
  • anonymous
@arnab09 whats your opinion on the y=2/3 only?

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