Wednesday

July 23, 2014

July 23, 2014

Posted by **lizzie** on Friday, August 12, 2011 at 6:25pm.

1.

|1/2 14

10 -8|

2,

Let matrix A = [8 -2

4 7 ]

Let matrix B = 2A, Find b_22

- Algebra-Matrix -
**Damon**, Friday, August 12, 2011 at 7:03pm1.

What do you want to do to it? Find the determinant?

If so

(1/2)(-8) - (14)(10)

= -4 -140

= -144

2.

2*7 = 14

- Algebra-Matrix -
**lizzie**, Friday, August 12, 2011 at 7:16pmIs this right then?

|12 -21

-2 -2/3|

answer-1/50

- Algebra-Matrix -
**Damon**, Friday, August 12, 2011 at 7:19pm| 12 -21 |

| -2 -2/3|

12(-2/3) -(-21*-2)

= -8 - 42

= -50

- Algebra-Matrix -
**lizzie**, Friday, August 12, 2011 at 7:32pmWhat about this one? Correct?

|1 0

0 1|

The answer would be 1

- Algebra-Matrix -
**Damon**, Friday, August 12, 2011 at 8:10pmYes.

**Related Questions**

Math - I have a few questions about T-Matrix. In excel, I am suppose to work ...

Maths: Algebra Matrices Class 12th - matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} ...

Algebra II - I skipped algebra I so I never learned about matrices. If you had a...

matrices - Two matrices can be multiplied only if their sizes are compatible. ...

Algebra II (Matrices) - My book doesn't solve it like a linear equation, they ...

MATHS----Matrix - For a given square matrix A the predicted values of matrix B ...

math - Two matrices can be multiplied only if their sizes are compatible. ...

Calc - A video games shop is analyzing its sales performance using matrices. ...

math - This is a matrix question. R is the matrix (3r 1) (s 2s) 1. State, in ...

math - This is a matrix question. R is the matrix (3r 1) (s 2s) 1. State, in ...