In 35-39 find the mistakes in the proots that the sum of any two rational numbers is a rational number 35. "Proof: Any two rational numbers produce a rational number when added together. So if r and s are particu- lar but arbitrarily chosen rational numbers, then r + s is rational." 36. "Proof: Let rational numbers r -4 and s - be given. Thenr+ +-which is a rational number. This is what was to be shown