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Author Question: Compute fxx(x, y) and fyy(x, y) if f(x, y) = xy + sin xy + x2 + 5xln y. (Read 79 times)

torybrooks

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Question 1

Find the value of the positive constant real number k such that the function is harmonic for all points in 3-space.
◦ 2 -
◦ 3
◦ 2 +

◦ 2

Question 2

Compute fxx(x, y)  and fyy(x, y)  if  f(x, y) = xy + sin xy + x2 + 5xln y.
◦ fxx(x, y)  =  y2 sin xy + 2,  fyy(x, y) = - x2 sin xy -
◦ fxx(x, y)  = - y2 sin xy + 2,  fyy(x, y) =  x2 sin xy -
◦ fxx(x, y)  = - y2 sin xy + 2,  fyy(x, y) = - x2 sin xy +
◦ fxx(x, y)  = - y2 sin xy + 2,  fyy(x, y) = - x2 sin xy -
◦ fxx(x, y)  = - x2 sin xy + 2,  fyy(x, y) = - y2 sin xy -


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Marked as best answer by torybrooks on May 27, 2021

aburgess

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torybrooks

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Reply 2 on: May 27, 2021
Great answer, keep it coming :)


Perkypinki

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Reply 3 on: Yesterday
Wow, this really help

 

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