In this video Determinants of order 3 and 4 are explained. First the value is found using expansion along first row, then different ways of writing the formula are explained. Then Sarrus rule for finding the value of the determinant directly is given. The value of the determinant of order 3 and volume of parallelepiped is also shown. Lastly how to find the value of a determinant of order 4 is explained. Examples are taken to explain the concepts.
The next video in this series will be on
Finding Inverse of a Matrix using Determinants.
Notes, Practice problems and solutions can be found on my website
profpritibajpai.com
go to courses , check Remedial Mathematics .
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00:11 Value of a Determinant of order 3, expansion and the formulas
06:16 Writing formula directly Method 1
08:50 Sarrus Rule for finding the value of determinant directly without expanding
11:28 Writing formula directly Method2
14:32 Tree Diagram
14:36 Example 1 using formula
17:07 Example 1 using Sarrus rule
19:25 Example2 using expansion
21:40 Value of Determinant and volume of parallelepiped
22:02 Determinant of order4
Негізгі бет Determinants of order 3 and 4 made easy
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