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August 29, 2015
Posted by **michele** on Saturday, April 9, 2011 at 1:07pm.

f(x) = sqrt x + sqrt(4 - x^2) ?

- math -
**Anonymous**, Saturday, April 9, 2011 at 11:57pmsqroot(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]