calc8 - r 2 = lim r!0 2r cos sin 2 =(2 cos sin 2 lim r!0 r...

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(b) lim (x,y)!(0,0) 2xy 2 x 2 + y 2 Solution. Convert to polar coordinates to get lim r!0+ 2r 3 cos _ sin 2
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Unformatted text preview: _ r 2 = lim r!0+ 2r cos _ sin 2 _ = (2 cos _ sin 2 _) lim r!0+ r = 0. (c) lim (x,y)!(0,0) sin(x...
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This note was uploaded on 02/11/2010 for the course MA 141 taught by Professor Zeck during the Spring '10 term at Quebec Trois-Rivieres.

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