# Answer to Question #42158 in Real Analysis for mathstd

Question #42158

Is the function f:R^2-{(0,0}→R^2 defined by

f(x,y)=(x/(x^2+y^2 ),-y/(x^2+y^2 ))

continuous on R^2-{(0,0}?

f(x,y)=(x/(x^2+y^2 ),-y/(x^2+y^2 ))

continuous on R^2-{(0,0}?

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