Posted by HARRY on Sunday, February 12, 2012 at 4:14pm.
find the domain of the real valued function;
f(x) = sqrt(5  (sqrtx))
my solution:
5  (sqrt x) >=0
(sqrt x) >= 5
(sqrt x) <= 5
x <= 25
(infinity, 25]
is this correct?

is this correct? math  Steve, Sunday, February 12, 2012 at 5:47pm
no, since when x < 0, sqrt(x) is not defined. so, neither is sqrt(5sqrt(x))
the domain is just [0,25]

is this correct? math  HARRY, Sunday, February 12, 2012 at 6:27pm
thank you very much!
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