How do you calculate the limit of ([sin(xy-2)]^2)/(xy-2) as (x,y) approaches (1,2) and as (x,y) approaches (3,1) ?

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Hold x or y constant and let the other go to the lim. Take lim as xy goes to (x,2)

does the (x,y) approaches (1,2) exist?

Following my instructions above is a tool to investigate if it exists or not

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