a) A sequence is defined using this term-to-term rule.
Un+1 = √2un+ 20
If u₁= 8, find u₂
b) Another sequence is defined using this term-to-term rule,
Un+1 = ku + r
where k and rare constants.
Given that u₁= 37, u₂ = 188 and u3 = 943, find the value of k and
the value of r.
