Functions help... (1 Viewer)

[cookiez69]

Yeah, I need help with another question...

f(x) = 2x-1 and g(x) = (x+1)/2

i) For what values of x is g(x) = f(x^2)?
ii) Prove f[g(x)] = x

I've done the first question as well as proved the second question, however for the last question, the working out seemed too simple and generally in this exam it should be the hardest...

 

[braintic]

So yes, it IS easy.

 

[cookiez69]

Thanks :]