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Mathematics-Online problems:

Interactive Problem 806: Partial Derivatives

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Let

$\displaystyle f(x,y)=\frac{1}{\sqrt{x^2+y^2}}. $

Evaluate

$\displaystyle f_x,f_y,f_{xx},f_{yy}$    and $\displaystyle f_{xy} $

at

$\displaystyle P_1=(0,1) \ $   and$\displaystyle \ P_2=(-3,4).$


Solution (reduce the fractions completely):

  $ P_1$ $ P_2$
$ f_x$ /
$ f_y$ /
$ f_{xx}$ /
$ f_{yy}$ /
$ f_{xy}$ /

   
(Author: Christian Höfert)
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  automatically generated: 8/11/2017