1. A loan of $1,500 is to be repaid by equal quarterly payments of X at the end of each quarter over a 5-year period at a interest rate 2% compounded semi-annually. Determine using both calculator built-in function and mathematical formula.
2. Find the PV of an annuity-due with payments of S750 every quarter for 5 years at a nominal rate of discount 8% per annum compounded quarterly using both calculator built-in function and mathematical formula.