SOLUTION: Hi all, I was hoping someone could show me how to solve the following for the give matrix; A = {{{ (matrix(3,3, 1, 2, 3, 2, 1, -1, 2, 0, 1) ) }}} a) Write the mat

Algebra ->  Matrices-and-determiminant -> SOLUTION: Hi all, I was hoping someone could show me how to solve the following for the give matrix; A = {{{ (matrix(3,3, 1, 2, 3, 2, 1, -1, 2, 0, 1) ) }}} a) Write the mat      Log On


   

Question 204659: Hi all, I was hoping someone could show me how to solve the following for the give matrix;
A =

a) Write the matrix 4A
b) Use matrix multipication to find A^2 = AA
Help on this problem with full working and explanations would be really helpful.
Thnaks, -Nick
Found 2 solutions by ichudov, alicealc:
Answer by ichudov(507) About Me  (Show Source):
You can put this solution on YOUR website!
Refer to matrix workbench at: http://www.algebra.com/algebra/college/linear/

Answer by alicealc(293) About Me  (Show Source):
You can put this solution on YOUR website!
a)
4A =

=
=

b)
A*A=

=
=%28matrix%283%2C3%2C%0D%0A11%2C+4%2C+4%2C%0D%0A2%2C+5%2C+4%2C%0D%0A4%2C+4%2C+7%29%29%0D%0A