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# Determinants resources

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### Facts & Formulae Leaflets (2) Differentiation for Economics and Business Studies Functions of Multi-Variable Functions
Overview of the rules of partial differentiation and methods of optimization of functions in Economics and Business Studies. This leaflet has been contributed to the mathcentre Community Project by Morgiane Richard (University of Aberdeen) and reviewed by Anthony Cronin (University College Dublin). Mathematical Tools for Physical Sciences and Systems Biology
This leaflet is a summary of common mathematical definitions and properties used in the Physical Sciences and Systems Biology contributed to the mathcentre Community Project by Dr Morgiane Richard, University of Aberdeen and reviewed by Mamen Romano and Ian Stansfield, University of Aberdeen.

### Quick Reference (4) Determinants
This leaflet explains what is meant by a determinant and shows how it can be evaluated. (Engineering Maths First Aid Kit 5.1) Example of finding the determinant of a 3x3 matrix
Matrices 10: This leaflet provides an example of calculating the determinant of a 3x3 matrix. There is an accompanying video tutorial. The determinant of a 2x2 matrix
Matrices 4: This leaflet explains what is meant by the determinant of a 2x2 matrix. It explains the terms singular matrix and non-singular matrix. There is an accompanying video tutorial. The determinant of a 3x3 matrix
Matrices 9: This leaflet explains how to calculate the determinant of a 3x3 matrix. There is an accompanying video tutorial.

### Test Yourself (3) Determinant of a matrix - Numbas
Find the determinants of three 2 x 2 invertible matrices. Determinants Test 01 (DEWIS)
Three questions on finding the determinant of a 2X2 and a 3X3 matrix and finding values of x such that the determinant of a 2X2 is zero. DEWIS resources have been made available under a Creative Commons licence by Rhys Gwynllyw & Karen Henderson, University of the West of England, Bristol. Maths EG
Computer-aided assessment of maths, stats and numeracy from GCSE to undergraduate level 2. These resources have been made available under a Creative Common licence by Martin Greenhow and Abdulrahman Kamavi, Brunel University.

### Video (3) Example of finding the determinant of a 3x3 matrix
Matrices 10: This video tutorial provides an example of calculating the determinant of a 3x3 matrix. There is an accompanying help leaflet. The determinant of a 2x2 matrix
Matrices 4: This video tutorial explains what is meant by the determinant of a 2x2 matrix. It explains the terms singular matrix and non-singular matrix. There is an accompanying help leaflet. The determinant of a 3x3 matrix
Matrices 9: This video tutorial explains how to calculate the determinant of a 3x3 matrix. There is an accompanying help leaflet.

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