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anonymous
 one year ago
PreCalc question
if f(x) = x2 + 3
and g(x) = √(x2)
what is f(g(x))?
anonymous
 one year ago
PreCalc question if f(x) = x2 + 3 and g(x) = √(x2) what is f(g(x))?

This Question is Closed

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1g(x)= sqrt{x2} so to find f(g(x)) you should substitute x for sqrt{x2} into f(x) function

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge\rm f(\color{ReD}{\sqrt{x2}})=\color{Red}{x}^2+3\] replace x with sqrt{x2}

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it would be √(x2)^2 + 3?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and the square root, and ^2 would cancel eachother out making it x2+3

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1hm right sqrt should be inside the parentheses (√(x2))^2+3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so my final answer would be x+1
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