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Bianca
:
How do I solve this…? f(x) = x+3/x+2 and g(x) = x+1/x-1 f(g)(x) = ? I know it's supposed to be simple, but I cannot get my head around it. Thank you.
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February 10, 2016 at 9:15am
Bianca
:
I did some working out but it's completely wrong, and I cannot understand how people solve it on the internet-
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February 10, 2016 at 9:16am
Little Sky
:
plugging g(x) into f(x), in another words, replacing the 'x' in f(x) with g(x), we have below. [deqn]f(x)=\frac{g(x)+3}{g(x)+2}=\frac{\frac{x+1}{x-1}+3}{\frac{x+1}{x-1}+2}=\frac{\frac{x+1+3x-3}{x-1}}{\frac{x+1+2x-2}{x-1}}=\frac{4x-2}{3x-1}[/deqn]
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February 11, 2016 at 6:40am
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