7. (20 points) give an example of (i) a 3 x 3 matrix which is not diagonalizable and show explicitly why it is not diagonalizable. (ii) a 2 × 2 matrix with eigenvectors that are not orthogonal

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

He will need 2,898 pieces of paper