**??? - 2014 JUNE Q2**

2. Find

i)

i)

ii) A sequence is defined by

u

u

Find, in terms of

_{1}=

*a*, where

*a*is an unknown constant,

u

_{n+1}= u

_{n}+ 5.

*a*, the tenth term and the sum of the first ten terms of this sequence. [3]