Find the determinant of the matrices below: (a) [ 1
−1
​ 0
2
​ ] (b) [ 1
1
​ 1
1
​ ] (c) ⎣
⎡
​ 1
2
0
​ 0
1
0
​ 2
−1
3
​ ⎦
⎤
​ (d) ⎣
⎡
​ 1
2
0
​ 0
1
1
​ 1
0
−2
​ ⎦
⎤
​ (c) ⎣
⎡
​ 1
2
0
0
​ 0
1
1
1
​ 1
0
−2
0
​ 0
1
0
0
​ ⎦
⎤
​