Question Number 146030 by Khalmohmmad last updated on 10/Jul/21
Commented by mr W last updated on 10/Jul/21
$${F}\left(\mathrm{0}\right)=\frac{\mathrm{2}×\mathrm{0}×{F}\left(−\mathrm{1}\right)}{\mathrm{0}+\mathrm{1}}=\mathrm{0} \\ $$$${F}\left(\mathrm{1}\right)=\frac{\mathrm{2}×\mathrm{1}×{F}\left(\mathrm{0}\right)}{\mathrm{1}+\mathrm{1}}={F}\left(\mathrm{0}\right)=\mathrm{0} \\ $$$${but}\:{F}\left(\mathrm{1}\right)=\mathrm{1}\:{is}\:{given}. \\ $$$$\Rightarrow{question}\:{is}\:{wrong}! \\ $$