3A =............and........ 1/2B =
(3 -6),................ ( 1.5 3)
(9 0).................. ( 0.5 -2)
a) Find the matrices A and B, then compute the matrix, 0.5A-3B
2007-12-22 16:40:55 · 3 answers · asked by tony2007 2 in Science & Mathematics ➔ Mathematics
Matrix A
[1____- 2]
[3_____0]
Matrix B
[3____6]
[1___- 4]
Marix (1/2) A
[1/2____- 1]
[3/2_____0]
Matrix -3B
[-9____-18]
[-3_____12]
Sum of (1/2)A - 3B
[- 17/2____- 19]
[- 3/2______12]
2007-12-22 21:21:15 · answer #1 · answered by Como 7 · 1⤊ 0⤋
A = [1 -2]
[3 0]
B = [3 6]
[1 -4]
So 0.5A-3B = [0.5-9 -1-18]
[1.5-3 0-12]
=[-8.5 -19]
[-1.5 -12]
2007-12-22 16:46:34 · answer #2 · answered by DANIEL G 6 · 0⤊ 0⤋
A =
|1 -2|
|3 0|
B=
|3 6|
|1 -4|
.5A-3B=
|-8.5 -19|
|-1.5 12|
2007-12-22 16:48:16 · answer #3 · answered by b1gmuff 3 · 0⤊ 0⤋