Continuity of Multivariable functions – A quotient of functions with sin – Exercise 4195

Exercise

Is the function

f(x,y)={(x1)(y2)(x1)2+sin2(y2),(x,y)(1,2)0,(x,y)=(1,2)f(x,y) = \begin{cases} \frac{(x-1)(y-2)}{{(x-1)}^2+\sin^2(y-2)}, &\quad (x,y) \not= (1,2)\\ 0, &\quad (x,y)= (1,2)\\ \end{cases}

Continuous at point (1,2)?

Final Answer


No

Solution

Coming soon…

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