1. The problem statement, all variables and given/known data X and Y are dimensionally different. (They have different units.) Select ALL the physically meaningful operations. State which are true or false 1. X/Y or X*Y 2. X+Y or X-Y 3. e^(X/Y) or e^(X+Y) 4. X^2 +Y^2 or X^X + Y^Y 5. X^2 or Y^2 6. X^(1/3) or Y^(1/3) 2. Relevant equations 3. The attempt at a solution I'm assuming 1. True because you could have like velocity/second, etc. 2. False, you can't add apples and oranges 3. False no idea though 4. False 5. True 6. True An explanation along with the correct answers would be greatly appreciated.