1. Write three reverse Polish notation formulas that cannot be converted to infix.
2. Convert the following infix Boolean formulas to reverse Polish notation.
a. (A AND B) OR C
b. (A OR B) AND (A OR C)
c. (A AND B) OR (C AND D)
3. Convert the following infix formula to reverse Polish notation and generate IJVM code to evaluate it.
(5 ´ 2 + 7) - (4 / 2 + 1)