This document defines the determinant function and provides examples of calculating determinants for 2x2 and 3x3 matrices. It explains that the determinant of a matrix is the sum of all permutations of the matrix's entries with appropriate signs. For 3x3 matrices, the document recommends using the Sarrus method, which involves taking sums and differences of 2x2 determinants. It concludes by asking if the Sarrus method can also be used for 4x4 and larger matrices.

1. Determinant Function
Created by:
Group 3
1. ADRIANA DWI ISMITA 06111008032
2. GIANI 06111008001
3. META APRIANI 06111008030
4. RIAN INDRA 06111008007
5. MICHAEL AMIN M 0611008015

2. DefiniTion of the determinant
Eg A is square matrix, then :
Determinant function of A is
det(A)

3. What is determinant ?
 Sum of all entries
 Form by product of permutation
 Not in the same line or column
 Each product have a mark (positive or
negative)
Let’s see the example !

4. Determinant of Matrix order 2 x 2

Product of Permutations Even Product of
elementer associated or elementer
s Odd marked
(1,2) even
(2,1) odd

5. 

6. Determinant of matrix order 3 x 3
Product permutati Even or Product
of ons Odd of
elementer associate elementer
d marked
(1, 2, 3) even
(1, 3, 2) odd
(2, 1, 3) odd
(2, 3, 1) even
(3, 1, 2) even
(3, 2, 1) odd

7. Sarrus Method’s
For matrix order 3x3, we can use this
method

8. So ,

9. question
1.
solusion :
2.

10. Solusion :

11. How about matrix order 4x4 and
the other ?
Can we use sarrus method ?

12. THE CONCLUSION IS DETERMINANT
OFTEN WRITTEN SYMBOLICALLY AS
