Consider the linear transformation T [ x 1 x 2 x 3 ] = [ x 2 x 3 x 2 + x 3 ] from ℝ 3 to ℝ 3 . a. Find all vectors of the form x → = [ 1 x 2 x 3 ] such that T ( x → ) is a scalar multiple of x → . Be prepared to dealwith irrational numbers. b. Find a basis of ℝ 3 such that the matrix B of Tis diagonal.
Consider the linear transformation T [ x 1 x 2 x 3 ] = [ x 2 x 3 x 2 + x 3 ] from ℝ 3 to ℝ 3 . a. Find all vectors of the form x → = [ 1 x 2 x 3 ] such that T ( x → ) is a scalar multiple of x → . Be prepared to dealwith irrational numbers. b. Find a basis of ℝ 3 such that the matrix B of Tis diagonal.
Solution Summary: The author explains that the linear transformation T(stackrelto x) is a scalar multiple of
Consider the linear transformation
T
[
x
1
x
2
x
3
]
=
[
x
2
x
3
x
2
+
x
3
]
from
ℝ
3
to
ℝ
3
. a. Find all vectors of the form
x
→
=
[
1
x
2
x
3
]
such that
T
(
x
→
)
is a scalar multiple of
x
→
. Be prepared to dealwith irrational numbers.
b. Find a basis of
ℝ
3
such that the matrix B of Tis diagonal.
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.
Solve by the quadratic formula or completing the square to obtain exact solutions.
2
e
104
OA) -16±3√6
B) 8±√10
O c) -8±√10
OD) 8±3√√6
U
Question 14 (1 point)
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The frame on a picture is 18 in by 22 in outside and is of uniform width. Using
algebraic methods, what is the width of the frame if the inner area of the picture
shown is 250 in²2? Write answer to 2 decimal places. (Write the number with no
units).
18 in
Your Answer:
22 in
◄ Listen
A vacant lot is being converted into a community garden. The garden and a walkway
around its perimeter have an area of 560 square feet. Find the width of the walkway
(x) if the garden measures 15 feet wide by 19 feet long. Write answer to 2 decimal
places. (Write the number without units).
X
15 feet
Your Answer:
19 feet
X
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