What is the difference between sixth and fifth terms of the sequence 2,4,7, ___ whose nth term is n + 2n-1
সমাধান
সঠিক উত্তর: Option D
here,
an=n+2n−1
so, sixth term, a6=6+26−1=38
fifth terms of the sequence,a5=5+25−1=21;
The difference is 38-21=17.
