> Find the effective annual rate of interest?

Find the effective annual rate of interest?

Posted at: 2014-12-05 
Let in = 0.1n for n = 1,2,3,4 be the effective rate of interest earned in year n. Find a(4) and the effective annual rate of interest earned during the first 4 years.

Let in = 0.1n for n = 1,2,3,4 be the effective rate of interest earned in year n. Find a(4) and the effective annual rate of interest earned during the first 4 years.