Question

Find a recursive rule for the sequence 2 4 6 10

Answer 1

`\bf 2~~,~~4~~,~~\stackrel{2+4}{6}~~,~~\stackrel{4+6}{10} ~\hfill \stackrel{n^(th)\textit{ value is the sum of the two before it}}{a_n=a_(n-2)+a_(n-1)} \\\\\\ ~\hspace{34em}`