How to find ( ƒ o g )(x) ? Help, please!!
1 Answer
Jan 9, 2018
Explanation:
#"note that "(f@g)(x)=f(g(x))#
#f(g(x))=f(x^2)#
#"substitute "x=x^2" into "f(x)#
#rArrf(color(red)(x^2))=sqrt(color(red)(x^2)+4)#
#rArr(f@g)(x)=sqrt(x^2+4)#
