Suppose you observe the following spot exchange rates: S(/$) = 0.67, S($/ ) = 2.00, S( /C) = 0.80 a. (5 points) Show if there exists a triangular arbitrage. If there exists an arbitrage, what is your strategy for a dollar profit (Start from selling the dollars and end with buying the dollars)? b. (5 points) Start with $100,000, calculate the dollar profit