Talk:High School Mathematics Extensions/Matrices/Problem Set

The ans to problem #5 is the 4×4 matrix A =


 * 1/p   -1   | <--row 1

(the 4 element of A are 1/p, -1, -1 and 1/(1-p). ) where p not equal to 0 or 1
 * -1 1/(1-p) | <--row 2

or the 4×4 matrix A =


 * 1/(1-q) -1 |   <--row 1


 * -1     1/q |   <--row 2

(the 4 elements of A are 1/(1-q), -1, -1 and 1/q.) where q not equal to 0 or 1

In problem #3 K^n = K*2^(n-1) not K^n = n*K  No explanations were given