Mht Cet
Functions
MHT CET 2019 2nd May Evening Shift
MCQ+2 / -02019
If $f(x)=3 x+6, g(x)=4 x+k$ and $f \circ g(x)=g \circ f(x)$ then $k=$
Mht Cet
MHT CET 2019 2nd May Evening Shift
If $f(x)=3 x+6, g(x)=4 x+k$ and $f \circ g(x)=g \circ f(x)$ then $k=$