check my precalc
posted by rebekah .
#1. solve x^21<0 I got (1,1)
#2 x(x+1) >20
I got (infinity, 4) U (5,infinity)
#3
what is the domain of this function? f(x)= squre root of (x3x^2)
i got [1/3,0]
thanks!!!
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