SOLUTION: LET {{{F(X)=X/(X+1)}}} THEN F(F(X))= ?/X^2+2X+1

Question 18861: LET THEN F(F(X))= ?/X^2+2X+1
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
f(x)=x/(x+1)
then
f(f(x))=
=
=..this is what it is ...but if it is to be written as
?/(x^2+2x+1)or shall we say y/(x^2+x+1)...then we have
y/(x^2+2x+1)=x/(2x+1)..so
y=(x^2+2x+1)*x/(2x+1)
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