Problem 1 Which of the following propositions are true? (Select all that are.) ? the Earth is closer to the Moon than to the Sun & (-1)x(-1) = 1 3 is an even integer | 1+123 3 is an odd integer (Q1) 4 is prime Which of the following propositions are true? (Select all that are.) ? (-1)x(-1) = 1 - 3 is an odd integer 3 is an even integer & 4 is a perfect square 4 is a perfect square | 4 is prime (Q2) (-1)*(-1) = 1 | 4 is a perfect square Which of the following propositions are true? (Select all that are.) ? 1+123 & (-1)x(-1) 3 is an even integer (-1)x(-1) 4 is prime (Q4) 3 is an even integer - 3 is an odd integer