Question Number 1956 by 123456 last updated on 26/Oct/15
$${x}_{{n}+\mathrm{1}} ={y}_{{n}} −\mathrm{1} \\ $$$${y}_{{n}+\mathrm{1}} ={x}_{{n}} +\mathrm{1} \\ $$$${x}_{\mathrm{0}} =\mathrm{1},{y}_{\mathrm{0}} =\mathrm{1} \\ $$$${x}_{\mathrm{10}} +{y}_{\mathrm{10}} =? \\ $$
Answered by prakash jain last updated on 26/Oct/15
$${x}_{{n}+\mathrm{1}} +{y}_{{n}+\mathrm{1}} ={x}_{{n}} +{y}_{{n}} \\ $$$${x}_{\mathrm{0}} +{y}_{\mathrm{0}} =\mathrm{2} \\ $$$${x}_{\mathrm{10}} +{y}_{\mathrm{10}} =\mathrm{2} \\ $$