- #1
Jennifer1990
- 55
- 0
Homework Statement
Prove
det [a+p b+r c+s; d e f; g h i] = det [ a b c; d e f; g h i] + det [p r s; d e f; g h i]
Homework Equations
none
The Attempt at a Solution
i'm not sure how to prove this though its seems obviously true =S