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4 answers

x≥0 but x is not=2

2007-01-29 21:58:09 · answer #1 · answered by Maths Rocks 4 · 0 0

x>0

2007-01-30 06:20:45 · answer #2 · answered by Iman S 2 · 0 0

It appears that
f(x) = 1/√x
G(x) = x + 2

The only restrictions are that the square root cannot be negative and the denominator cannot be zero. Therefore the domain of the composite function is x > 0.

2007-01-30 05:32:40 · answer #3 · answered by Northstar 7 · 0 1

The domain is the possible x values...

since (sqrt x) is in the denominator, x cannot be 0.

If I remember right, functions usually need to be real numbers, so x must be positive. (sqrt of a negative number yields an imaginary number.)

So, the domain is x>0.

2007-01-30 05:32:26 · answer #4 · answered by Mathematica 7 · 1 0

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