Consider a perpetuity paying 1 every odd year (2021, 2023, 2025 etc.) and 2 every even year (2022, 2024, 2026, etc.). Assuming a discount rate equal to r>0 per year, what would be the present value in 2020 of this stream of cash flows? 1 2 + (1+r)2 r 1 1 + r (1+r)2-1 0 1 2 + (1+r)2-1