Asked by edward
What is the domain of the functions f(x)= 1/root(x+|x|) f(x)= x|x|
Answers
Answered by
Steve
√(x+|x|) = 0 when x <= 0
so, domain of 1/√(x+|x|) is all reals > 0
domain of x|x| is all reals
so, domain of 1/√(x+|x|) is all reals > 0
domain of x|x| is all reals
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