In: Advanced Math
How many distinct 2x2 matrices can we have by using the numbers 1,2,3 and 4. Repeating numbers is not allowed.
2!*2!
4*3*4*3
4!
How many multiplications are required to compute AB if A is a 4x7 matrix and B is a 7x5 matrix?
35
28
980
140
4^4
Let A be an nxn matrix, What is det(A) if A has a row of zeros?
n-1
1
0
n