Posted by michele on Saturday, April 9, 2011 at 1:07pm.
sqroot(x)>=0
and
4-x^2>=0
4>=x^2
x>=-2 x<2
Negative numbers does not have a position on the number line.So:
Domain of
f(x)= sqrt(x) + sqrt(4 - x^2)
[-0,2]
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