A loan of $10000 is to be repaid over a period of eight years. During the first four years, exactly half of the loan principal is to be repaid (along with accumulated compound interest) by a uniform series of payments of A₁ dollars per year. The other half of the loan principal is to be repaid over four years, with accumulated interest, by a uniform series of payments of A₂ dollars per year. If i= 9% per year, what are A₁ and A₂? (4.10)

4-64