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Mathematics 9 Online
snowflake0531:

check

AZ:

@snowflake0531 wrote:
d b c a
So \( f(\color{red}{g(x)}) = f(\color{red}{\sqrt{x^2+2}}) \) Plug that into \( f(\color{red}{x}) = \color{red}{x}^2 + 4\)

AZ:

similarly for \( g(f(x)) = g(x^2 + 4)\) Plug in x^2 + 4 into the function g(x)

snowflake0531:

f(g(x)) = f(sqrt(x+2) f(x) = x^2 + 4 (sqrt(x+2))^2 + 4 x+2+4 uhm one sec

AZ:

It's square root of x^2 + 2 not x + 2 but yeah x^2 + 2 + 4 = ??

snowflake0531:

o-O it's x+2

AZ:

oh wait yeah hahaha I copied the question wrong yeah, just switch around 2 and 3

snowflake0531:

xdxd done

AZ:

@snowflake0531 wrote:
27 undefined 3 undefined 71 degrees -2
These are all correct

snowflake0531:

kk thanksssssssssss o-O xdxd i'm gonna post another set tho lol, i'll @ you?

AZ:

of course

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