An investor deposits $1000 at the beginning of each year for 10 years in a fund earningieffective p.a. The interest from this fund can be reinvested at onlyjeffective p.a. Whereby

Prove the total accumulated value at the end of 14 years is:

If some one could help clarify, does the $1000 earn interest atip.a and any extra earn interest atjp.a?