Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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BOOK]math2995 Linear Algebra A Modern I..
"age 203 of 579
3.3 EXERCISES
Use Cramer's rule to compute the solutions of the systems in
Exercises 1-6.
1. 5x1 +7x2 = 3
2. 4x + x2 = 6
2x1 + 4x2 1
3x1 + 2x2 7
3. 3x1 -2x2 =
3
4. -5x1 + 2x2 =
9.
-4x + 6x2 = -5
3x1 - x2 = -4
5.
X1 + x2
= 3
6.
X + 3x2 + x3 = 4
-3x1
+ 2x = 0
-x +
2x3 = 2
X2 – 2x3 = 2
3x1 + X2
= 2
In Exercises 7-10, determine the values of the parameter s
for which the system has a unique solution, and describe the
solution.
7. 6sx, + 4x2 = 5
8. 3sx, + 5x2 = 3
9x1 + 2sx2 = -2
12x, + 5sx, = 2
In Exercises 19-22, find the area of the parallelogram whos
vertices are listed.
19. (0,0), (5, 2), (6, 4), (11, 6)
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Transcribed Image Text:Tools
Window
Help
BOOK]math2995 Linear Algebra A Modern I..
"age 203 of 579
3.3 EXERCISES
Use Cramer's rule to compute the solutions of the systems in
Exercises 1-6.
1. 5x1 +7x2 = 3
2. 4x + x2 = 6
2x1 + 4x2 1
3x1 + 2x2 7
3. 3x1 -2x2 =
3
4. -5x1 + 2x2 =
9.
-4x + 6x2 = -5
3x1 - x2 = -4
5.
X1 + x2
= 3
6.
X + 3x2 + x3 = 4
-3x1
+ 2x = 0
-x +
2x3 = 2
X2 – 2x3 = 2
3x1 + X2
= 2
In Exercises 7-10, determine the values of the parameter s
for which the system has a unique solution, and describe the
solution.
7. 6sx, + 4x2 = 5
8. 3sx, + 5x2 = 3
9x1 + 2sx2 = -2
12x, + 5sx, = 2
In Exercises 19-22, find the area of the parallelogram whos
vertices are listed.
19. (0,0), (5, 2), (6, 4), (11, 6)
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