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Unit 6 Test
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Unit
6 Matrices and Determinants
Graphing Calculator Skills necessary for this
chapter.
Section 6.4 Determinants of Matrices
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Objectives and Highlights You will be able
to:
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Find the
determinant of a 2 x 2 matrix algebraically (Minors
and cofactors are optional)
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Find the
determinant of a 3 x 3 matrix using the diagonal
method.
Find the
determinant of all numerical square
matrices using the graphing calculator
Explore derterminants
with LiveMath
Section 6.5 Applications of Matrices
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Much of this section is
optional for test purposes.
However, most of the mathematics is very interesting and it is only
due to lack of time that much of it will not be explored fully.
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Area of a triangle with given
vertices
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Cramer's Rule
for 2 by 2 and 3 by 3 system.
Though this method of solving is a nice numeric system, the easiest system
to use is still X = A-1B with matrices,
or the rref command on the TI 83.
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Review Exercises and Practice Chapter Test
| At the end of this chapter
and every chapter are the review exercises and the chapter testin the text.
These are completed for you on the CD and also in the solutions manual.
As with all the exercises in this course, try to do them on your own first
before looking at the given answers and solutions, and remember to post questions
on the bulletin board and also to email the instructor if you are having
difficulty. Do not start the next chapter until you have mastered the material
in this chapter. |
Sample word problems
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7
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