3. Determinants

1. View the video in the link below.
    Video 1
    View only the determinant topic. Video part 4/14 under matrices.
    The methods shown in the video above is slightly different from the video
    below.
 
    Video 2
    This is another method of finding determinants. View this video now.

2. After viewing the two videos above which methods do u think is easy to
    apply in order to evaluate determinants up to 3 x 3 matrices ?
    Discuss this in the forum discussions.
   
3. Here is a quiz for you to try out. Full solutions will be shown if you
    have chosen the correct answer. Good Luck...

f you have built castles in the air, your work need not be lost;

that is where they should be.
Now put foundations under them.

Henry David Thoreau