TEST Pre-Calculus Matrices, Determinants, Inverses

Front

What is the inverse of this matrix?

Back

(1/25) (-4/25) (3/25) (13/25)

Front

Solve for the determinant of the matrix: ⌈12 −3⌉ ⌊−6 15⌋

Back

162

Front

Which of the following matrices do NOT have an inverse? Options: [1  2]
[3  4], [6  0]
[4  2], ⌈6  3⌉
⌊4  2⌋

Back

⌈6  3⌉
⌊4  2⌋

Front

Are A and B inverses? A = ⌈3 -10⌉ ⌊1 4⌋ B = ⌈2/11 5/11⌉ ⌊-1/22 3/22⌋ *AB=I

Back

Yes

Front

What size is this matrix?

Back

3x2

Front

What would be the dimensions (output) of AB?

Back

3 X 3

Front

Find: B*A

Back

47     30
9     5

Front

Find the product.

Back

-3   16
17   12
8   -10

Front

In Matrix R (pictured) what is the value of element R_3,2?

Back

8

Front

Find A+B

Back

8     10
8      1