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## Determinants

1.
For $A = [[1,3],[4,6]]$, find $|A|$.
1. -6
2. 6
3. 18
4. -1
2.
What is the determinant of $[[3,2],[6,4]]$?
1. 10
2. -10
3. 0
4. 26
3.
What is the determinant of $[[15,3],[-6,4]]$?
1. 45
2. 78
3. -45
4. 55
4.
What is the determinant of the following matrix?
$[[-5,0,-1], [1,2,-1], [-3,4,1]]$
1. 40
2. -40
3. 12
4. -12
5.
What is the determinant of $[[3,0,1],[2,1,4],[5,2,1]]$?
1. -22
2. 38
3. -38
4. 0
6.
What is the determinant of $[[1,-3,4],[6,2,-1],[0,3,5]]$ ?
1. 25
2. 175
3. 40
4. -25
7.
What is the determinant of $[[1,-3,4],[6,2,-1],[0,3,5]]$?
1. 25
2. -25
3. 40
4. 175
8.
Evaluate the determinant using diagonals.

$[[2,-3,5],[-4,6,-2],[4,-1,-6]]$
1. -80
2. -284
3. 24
4. 80
9.
Evaluate the determinant using diagonals.

$[[-5,-6,7],[4,0,5],[-3,8,2]]$
1. $562$
2. $-80$
3. $26$
4. $-561$
10.
Find the determinant of the following:

$[(-11,3,10),(19,2,-4),(-8,-10,20)]$
1. -2478
2. -2784
3. 2784
4. none of the above
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