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Question: getting a error about calling sequence, please help

Question:getting a error about calling sequence, please help

cheeseman42001 4
February 10 2006
0
Here is my problem: I am trying to plot this: y=(pi(sqrt(4-(x^2)))/((x^2)+4) but i get this error, when trying to plot. Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct Error, empty plot please help ASAP
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