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Question Number 166443 by mathls last updated on 20/Feb/22

fog_((3)) =10  f(3)=4  g(x)=?

$${fog}_{\left(\mathrm{3}\right)} =\mathrm{10} \\ $$$${f}\left(\mathrm{3}\right)=\mathrm{4} \\ $$$${g}\left({x}\right)=? \\ $$

Commented by mr W last updated on 20/Feb/22

no solution!  this question is something like the  question: given that you go to the   second class, find the name of your   grandpa.

$${no}\:{solution}! \\ $$$${this}\:{question}\:{is}\:{something}\:{like}\:{the} \\ $$$${question}:\:{given}\:{that}\:{you}\:{go}\:{to}\:{the}\: \\ $$$${second}\:{class},\:{find}\:{the}\:{name}\:{of}\:{your}\: \\ $$$${grandpa}. \\ $$

Answered by ziaullah_Azizi last updated on 22/Feb/22

$$ \\ $$

Commented by ziaullah_Azizi last updated on 22/Feb/22

Commented by mr W last updated on 22/Feb/22

f(3)=4 ⇒f(x)=x+1 ????  why not f(x)=2(x−1) or f(x)=x^2 −5   or f(x)=2^x −4 or...?

$${f}\left(\mathrm{3}\right)=\mathrm{4}\:\Rightarrow{f}\left({x}\right)={x}+\mathrm{1}\:???? \\ $$$${why}\:{not}\:{f}\left({x}\right)=\mathrm{2}\left({x}−\mathrm{1}\right)\:{or}\:{f}\left({x}\right)={x}^{\mathrm{2}} −\mathrm{5}\: \\ $$$${or}\:{f}\left({x}\right)=\mathrm{2}^{{x}} −\mathrm{4}\:{or}...? \\ $$

Answered by ziaullah_Azizi last updated on 22/Feb/22

$$ \\ $$

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