Let T be a linear transformation from R 2 into R 2 such that T ( x , y ) = ( x cos θ − y sin θ , x sin θ + y cos θ ) . Find (a) T ( 4 , 4 ) for θ = 45 ° , (b) T ( 4 , 4 ) for θ = 30 ° , and (c) T ( 5 , 0 ) for θ = 120 ° .
Let T be a linear transformation from R 2 into R 2 such that T ( x , y ) = ( x cos θ − y sin θ , x sin θ + y cos θ ) . Find (a) T ( 4 , 4 ) for θ = 45 ° , (b) T ( 4 , 4 ) for θ = 30 ° , and (c) T ( 5 , 0 ) for θ = 120 ° .
Solution Summary: The author calculates the value of T(4,4) at theta =45° for the given linear transformation.
Let
T
be a linear transformation from
R
2
into
R
2
such that
T
(
x
,
y
)
=
(
x
cos
θ
−
y
sin
θ
,
x
sin
θ
+
y
cos
θ
)
. Find (a)
T
(
4
,
4
)
for
θ
=
45
°
,
(b)
T
(
4
,
4
)
for
θ
=
30
°
, and (c)
T
(
5
,
0
)
for
θ
=
120
°
.
Chapter 4 Quiz 2 As always, show your work. 1) FindΘgivencscΘ=1.045.
2) Find Θ given sec Θ = 4.213.
3) Find Θ given cot Θ = 0.579. Solve the following three right triangles.
B
21.0
34.6° ca
52.5
4)c
26°
5)
A
b
6) B 84.0 a
42°
b
Q1: A: Let M and N be two subspace of finite dimension linear space X, show that if M = N
then dim M = dim N but the converse need not to be true.
B: Let A and B two balanced subsets of a linear space X, show that whether An B and
AUB are balanced sets or nor.
Q2: Answer only two
A:Let M be a subset of a linear space X, show that M is a hyperplane of X iff there exists
ƒ€ X'/{0} and a € F such that M = (x = x/f&x) = x}.
fe
B:Show that every two norms on finite dimension linear space are equivalent
C: Let f be a linear function from a normed space X in to a normed space Y, show that
continuous at x, E X iff for any sequence (x) in X converge to Xo then the sequence
(f(x)) converge to (f(x)) in Y.
Q3: A:Let M be a closed subspace of a normed space X, constract a linear space X/M as
normed space
B: Let A be a finite dimension subspace of a Banach space X, show that A is closed.
C: Show that every finite dimension normed space is Banach space.
• Plane II is spanned by the vectors:
P12
P2 = 1
• Subspace W is spanned by the vectors:
W₁ =
-- () ·
2
1
W2 =
0
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Linear Equation | Solving Linear Equations | What is Linear Equation in one variable ?; Author: Najam Academy;https://www.youtube.com/watch?v=tHm3X_Ta_iE;License: Standard YouTube License, CC-BY