Compute the present value for the following:c one year, another $1,000 in two years, and a third payment of $1,000 in three years (e.g., three payments of $1,000 to be paid once a year for three years). The discount rate is 4%.The same three $1,000 payments as in part a) above, but with a 6% discount rateAn investment that will pay you $2,000 in one year, another $1,500 in two years, and a third payment of $3,000 in three years. The discount rate is 4%.