Consider A = \(\left[\begin{array}{ll} 1 & 4 \\ 2 & 3 \end{array}\right]\). Suppose A5 - 4A4 - 7A3 + 11A2 - A − 10I = aA + bI for some a, b ∈ ℤ. Which of the following statements are true?
1
a + b > 8.
2
a + b < 7.
3
a + b is divisible by 2.
4
a > b.