Extra Examples of Domain : Find domain of following func/ons:
x2
3u + 2
2)M (x) =
1) f (x) = 2
x 2 25
u 9
u 2 9 0 (u 3)(u + 3) 0 u 3, u 3 x 2 25 > 0 x 2 > 25 x 2 > 5 x > 5
D f = cfw_3, 3
either x > 5 or x < 5
DM = (,5) ( 5,) = [5, 5]
2)g(x) =
Determinant of 3x3 Matrix
Name: _
Date: _
Version 1
Score: _
Direction: Solve for the determinant of the following 3x3 matrices. Show all your work in the space provided.
1)
1
4
7
2
5
8
3
6
9
2)
2
5
4
1
1
4
0
7
6
3)
0 5
7 6
1 2
6
3
8
Copyright 2011 ChiliM
1. One of the following numbers is .
a) 2
b) 36
c) 3
d) 6
2. One of the following numbers is .
!
a) 8
b) 2
!
c) !
a) 4.125
3. Which property is illustrated by the equation + = +
a)
b)
c)
d)
Commutative
Associative
Distributiv
Cramers Rule in Two Variables
Name: _
Date: _
Version 1
Score: _
Direction: Solve each system of equations using Cramers Rule.
4
2 x + 3 y =
1)
1
x + y =
1
2 x + 4 y =
2)
3
2 x + y =
3
3 x 2 y =
3)
2
x + 5y =
Copyright 2011 ChiliMath
All rights reserve
Cramers Rule in Three Variables
Name: _
Date: _
Version 2
Score: _
Direction: Solve each system of equations using Cramers Rule.
3x
1)
x
y 2z
y
7x
2)
1
z 1
y
z 1
x 2 y 3y 5
x 3y z
1
x 4y z 1
Copyright 2011 ChiliMath
All rights reserved
http:/www.chilimath
Cramer's Rule with Two Variables - ChiliMath
Adding and Subtracting
Matrices
Related Lessons:
1/15/14, 8:04 PM
Find the Inverse
of 2x2 Matrix
Cramer's Rule
3x3
Scalar and Matrix
Multiplication
Cramer's Rule for a 2x2 System (With Two Variables)| Step by S
Cramer's Rule with Three Variables - ChiliMath
Related Lessons:
Adding and Subtracting
Matrices
1/30/14, 12:02 PM
Find the Inverse
of 2x2 Matrix
Cramer's Rule 2x2
Scalar and Matrix
Multiplication
Search
Custom Search
Recommend
Cramer's Rule for a 3x3 Syst