Friday

January 30, 2015

January 30, 2015

Posted by **Bersy** on Saturday, January 26, 2013 at 5:14pm.

1 0

−1 3

A =

−1 −8

2 11

.

Hint: Let

A =

a b

c d

A=

- Math -
**Damon**, Saturday, January 26, 2013 at 6:24pm| 1 0 | | a b | |-1 -8 |

|-1 3 | | c d | | 2 11 |

so

1 a + 0 c = -1 ---> a = -1

1 b + 0 d = -8 ----> b = -8

-1 a + 3 c = 2

but a = -1

1 + 3 c = 2

c = 1/3

-1 b + 3 d = 11

but b = -8

8 + 3 d = 11

3 d = 3

d = 1

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