Solution:- quada_(n)=36a_(n-2)-8∣a_(n)-4+F(n)Associated nomogencous recurrence relation.a_(n)=36a_(n-2)-81a_(n-4)Characteristic equation gamma^(4)=36gamma^(2)-81{:[gamma^(4)-36r^(2)+81=0],[(r^(2)-9)^(2)=0" or "(r^(2)-3)^(2)(r^(2)+3)^(2)=0],[{:[-3,3],[darr,__|],[2,2]:}]:}i) F(x)=3S=1 which i ... See the full answer