Question Number 93331 by john santu last updated on 12/May/20
$$\mathrm{If}\:\mathrm{f}\left(\mathrm{x}+\mathrm{y}\right)\:=\:\mathrm{f}\left(\mathrm{x}\right)+\mathrm{f}\left(\mathrm{y}\right)\:\mathrm{and} \\ $$$$\mathrm{f}\left(\mathrm{1}\right)=\mathrm{5}\:\mathrm{then}\:\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{value} \\ $$$$\mathrm{of}\:\mathrm{f}\left(\mathrm{2020}\right)\:?\: \\ $$
Commented by mr W last updated on 12/May/20
$${f}\left({x}\right)=\mathrm{5}{x} \\ $$$${f}\left(\mathrm{2020}\right)=\mathrm{5}×\mathrm{2020} \\ $$
Commented by john santu last updated on 12/May/20
$$\mathrm{thank}\:\mathrm{you}\:\mathrm{both} \\ $$
Answered by i jagooll last updated on 12/May/20
