Calculus
posted by Anonymous .
Let f(x)=x+1/(x^(2)1).
Sketch the graph of y=f(x) for 4<=x<=4.

Calculus 
bobpursley
I cant sketch it here.
test the f(x) during the ranges.
try x=4 is f(x) postive or negative?
try x=1/2, and +1/2. Test f(x) sign
Now, try x=2
Those will give you the regions of + or  values.
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