Question: 3 8 . ( a ) Show that Dn satisfies the recurrence Dn = ( n 1 ) ( Dn 1 + Dn 2 )

38.(a) Show that Dn satisfies the recurrence Dn =(n 1)(Dn1+ Dn2).(b) Rewriting the recurrence in part (a) as Dn nDn1=[Dn1(n 1) Dn2], iterate backwards to obtain the recurrence Dn = nDn1+(1)n.(c) Use part (b) to make a list of Dn values up to n =10.

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