Question 69401
given: f(x)=x^2+3
g(x)=(sqrt)2-x
find f o g (x) 
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f[g(x)]= f[sqrt(2) - x] 
= [sqrt2 - x]^2+3

= [2-2sqrt(2)x+x^2] + 3

=x^2-2sqrt(2)x+5
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Cheers,
Stan H.