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????

made a stupid error, just a sec.

|dw:1347772271638:dw|

yeah range is limited...i dont how to evaluate the exact interval for range :(

*know

i want to show it algebrically if its possible !!

Another small test is that f(x) can't be <0 because solving it gives -1<-3 which is a contradiction.

the range of f(x) is ( 0,2]