第（3）題4 -1 3 -2 3 -1 4 -2 3 -2 2 -4 0 1 2 2 4 -1 3 -2 0 -1/4 7/4 -1/2 0 -5/4 -1/4 -5/2 0 1 2 2 4 0 -4 0 0 -1/4 7/4 -1/2 0 0 -9 0 0 0 9 0 4 0 0 0 0 -1/4 0 -1/2 0 0 -9 0 0 0 0 0 1 0 0 0 0 1 0 2 0 0 1 0 0 0 0 0 秩等於3第（4）題1 5 6 -4 -10 2 3 5 -1 -6 6 -1 5 7 2 2 -3 -1 5 6 1 5 6 -4 -10 0 -7 -7 7 14 0 -31 -31 31 62 0 -13 -13 13 26 1 0 1 1 0 0 -7 -7 7 14 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 1 -1 -2 0 0 0 0 0 0 0 0 0 0 秩等於2