1.34 Example 1.10 shows how to represent rotation of all vectors in the plane through an angle 8 about the origin, with respect to the standard bases. (a) Rotation of all vectors in three-space through an angle about the x-axis is a transformation of R³. Represent it with respect to the standard bases. Arrange the rotation so that to someone whose feet are at the origin and whose head is at (1,0,0), the movement appears clockwise. (b) Repeat the prior item, only rotate about the y-axis instead. (Put the person's head at €₂.) (c) Repeat, about the z-axis. (d) Extend the prior item to R¹. (Hint: we can restate 'rotate about the z-axis' as 'rotate parallel to the xy-plane'.)

Advanced Engineering Mathematics
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ISBN:9780470458365
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Chapter2: Second-order Linear Odes
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Please do part A,B,C,D and please show step by step and explain

1.10 Example To represent a rotation map to: R² → R² that turns all vectors in
the plane counterclockwise
through an angle
ū
=
+x/5
we start by fixing the standard bases E₂ for both the domain and codomain
basis, Now find the image under the map of each vector in the domain's basis.
(*)
Represent these images with respect to the codomain's basis. Because this basis
is E2, vectors represent themselves. Adjoin the representations to get the matrix
representing the map.
3
COS
sin
(1)-() () (
sin
cos
Repɛ2,8₂ (te) =
tπ/6 (ū)
cos (
sin 0
- sin Ꮎ
cos 0
The advantage of this scheme is that we get a formula for the image of any
vector at all just by knowing in (*) how to represent the image of the two basis
vectors. For instance, here we rotate a vector by 0 = π/6.
3
3
3.598
3.598
: (√³/2² √3/2) (-2) = (-²0232) - (²0.232
E2
82
More generally, we have a formula for rotation by 0 = π/6.
(√3/2)x-(1/2)y
(:) == (√3/2² -√2/2) (*) - (1/2) + (√3/21M)
=
Transcribed Image Text:1.10 Example To represent a rotation map to: R² → R² that turns all vectors in the plane counterclockwise through an angle ū = +x/5 we start by fixing the standard bases E₂ for both the domain and codomain basis, Now find the image under the map of each vector in the domain's basis. (*) Represent these images with respect to the codomain's basis. Because this basis is E2, vectors represent themselves. Adjoin the representations to get the matrix representing the map. 3 COS sin (1)-() () ( sin cos Repɛ2,8₂ (te) = tπ/6 (ū) cos ( sin 0 - sin Ꮎ cos 0 The advantage of this scheme is that we get a formula for the image of any vector at all just by knowing in (*) how to represent the image of the two basis vectors. For instance, here we rotate a vector by 0 = π/6. 3 3 3.598 3.598 : (√³/2² √3/2) (-2) = (-²0232) - (²0.232 E2 82 More generally, we have a formula for rotation by 0 = π/6. (√3/2)x-(1/2)y (:) == (√3/2² -√2/2) (*) - (1/2) + (√3/21M) =
✓ 1.34 Example 1.10 shows how to represent rotation of all vectors in the plane through
an angle about the origin, with respect to the standard bases.
(a) Rotation of all vectors in three-space through an angle 0 about the x-axis is a
transformation of R³. Represent it with respect to the standard bases. Arrange
the rotation so that to someone whose feet are at the origin and whose head is
at (1,0,0), the movement appears clockwise.
(b) Repeat the prior item, only rotate about the y-axis instead. (Put the person's
head at ₂.)
(c) Repeat, about the z-axis.
(d) Extend the prior item to R¹. (Hint: we can restate 'rotate about the z-axis'
as 'rotate parallel to the xy-plane'.)
Transcribed Image Text:✓ 1.34 Example 1.10 shows how to represent rotation of all vectors in the plane through an angle about the origin, with respect to the standard bases. (a) Rotation of all vectors in three-space through an angle 0 about the x-axis is a transformation of R³. Represent it with respect to the standard bases. Arrange the rotation so that to someone whose feet are at the origin and whose head is at (1,0,0), the movement appears clockwise. (b) Repeat the prior item, only rotate about the y-axis instead. (Put the person's head at ₂.) (c) Repeat, about the z-axis. (d) Extend the prior item to R¹. (Hint: we can restate 'rotate about the z-axis' as 'rotate parallel to the xy-plane'.)
Expert Solution
Introduction

As per the question, we were asked to derive rotation matrices for rotating vectors in three-dimensional and four-dimensional space.

Specifically, we were asked to find rotation matrices for rotating vectors about the x-axis, y-axis, and z-axis, and represent them with respect to the standard bases.

In addition, we were asked to arrange the rotations so that they appear clockwise when viewed from a certain perspective.

Finally, we extended the question to four-dimensional space and found the corresponding rotation matrix for rotating vectors parallel to the xy-plane.

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