Problem 2. Which of the following arguments are invalid and which are valid? Prove your answer by replacing each proposition with a variable to obtain the form of the argument. Then prove that the form is valid or invalid. The patient has high blood pressure or diabetes or both. 2(a) The patient has diabetes or high cholesterol or both. The patient has high blood pressure or high cholesterol He studied for the test or he failed the test or both. , He studied for the test. 2(b) He passed the test. ffamedd - Mar 6, 2019, sC is not a rational number. If is not a rational number, then 2 is a rational number. 2T is not a rational number. 2(c)