PPTs ON DETERMINANTS

1 / 7

# PPTs ON DETERMINANTS - PowerPoint PPT Presentation

PPTs ON DETERMINANTS. SUBJECT- BUSINESS MATHEMATICS CLASS-Bcom SECTION-1. Determinants. Determinant - a square array of numbers or variables enclosed between parallel vertical bars. **To find a determinant you must have a SQUARE MATRIX !!**. Finding a 2 x 2 determinant:.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about ' PPTs ON DETERMINANTS' - bert

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

CLASS-Bcom

SECTION-1

### Determinants

Determinant - a square array of numbers or variables enclosed between parallel vertical bars.

**To find a determinant you must have a SQUARE MATRIX!!**

Finding a 2 x 2 determinant:

Finding a 3x3 determinant: Diagonal method

Step 1: Rewrite first two rows of the matrix.

-224

+10

+162

= -52

-126

+12

+240

Step 2: multiply diagonals going up!

Step 2: multiply diagonals going down!

=126

Step 3: Bottom minus top!

126 - (-52)

126 + 52

= 178

-18

+50

+6

= 38

45

- 15

+ 8

Step 2: multiply diagonals going up!

Step 2: multiply diagonals going down!

= 38

Step 3: Bottom minus top!

38 - 38

= 0