Consider an annuity for 10 years, whose payments vary in geometric progression. An annual effective interest rate of 6% is used. Obtain the financial value at t = 29/05/2010 of this annuity considering different cases:

1. Annual payments increasing 3% annually. First payment (1,650; 29/05/2011).
2. Annual payments increasing 5% annually. First payment (1,650; 29/05/2011).
3. Monthly payments increasing 0.3% monthly. First payment (175; 29/06/2010).
4. Monthly payments, constant during the year and increasing 4% annually. First payment (175; 29/06/2010).