Question: For each function, find (a) The critical numbers; (b) The open intervals where the function is increasing; (c) The open intervals where it is decreasing.

For each function, find 

(a) The critical numbers; 

(b) The open intervals where the function is increasing;  

(c) The open intervals where it is decreasing.

f(x) = ln 5x2 + 4/x2 + 1


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