Let B = { [ 1 − 4 ] , [ − 2 9 ] } . Since the coordinate mapping determined by B is a linear transformation from ℝ 2 into ℝ 2 , this mapping must be implemented by some 2 × 2 matrix A . Find it. [ Hint: Multiplication by A should transform a vector x into its coordinate vector [ x ] B .]
Let B = { [ 1 − 4 ] , [ − 2 9 ] } . Since the coordinate mapping determined by B is a linear transformation from ℝ 2 into ℝ 2 , this mapping must be implemented by some 2 × 2 matrix A . Find it. [ Hint: Multiplication by A should transform a vector x into its coordinate vector [ x ] B .]
Let
B
=
{
[
1
−
4
]
,
[
−
2
9
]
}
. Since the coordinate mapping determined by B is a linear transformation from ℝ2 into ℝ2, this mapping must be implemented by some 2 × 2 matrix A. Find it. [Hint: Multiplication by A should transform a vectorx into its coordinate vector [ x ]B.]
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
Set up the matrix which will perform the following transformation and write down its character.(x
-y)to(y
-x)
Assume that T is a linear transformation. T: Projects vectors in its domain onto the line y = 2/3 x.
Find the standard matrix of T.
Enter your matrix as 4-tuple (a11, 12, 921, 922)
Use only fractions in simplest form and integers. NO DECIMALS
"a11
11
"),a12=
,a21=
,a22=
Show that the matrix TR2 is the inverse matrix of (R-1)2T-1.
Chapter 4 Solutions
Thomas' Calculus and Linear Algebra and Its Applications Package for the Georgia Institute of Technology, 1/e
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