Question 44 - Week 4 Practice | Prasnya
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Week 4
Question 44
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Est. 1 min
Marks:
+1.00
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Passage
Consider the following subsets of
R
3
\mathbb{R}^3
. Subset 1:
W
=
{
(
x
,
y
,
z
)
:
x
,
y
,
z
∈
R
,
x
2
+
y
2
=
0
}
W=\{(x,y,z):x,y,z\in\mathbb{R},\ x^2+y^2=0\}
. Subset 2:
W
=
{
(
x
,
y
,
z
)
:
x
,
y
,
z
∈
R
,
x
=
−
z
}
W=\{(x,y,z):x,y,z\in\mathbb{R},\ x=-z\}
. Subset 3:
W
=
{
(
x
,
y
,
z
)
:
x
,
y
,
z
∈
R
,
z
=
2
y
+
z
and
x
+
z
=
2
y
}
W=\{(x,y,z):x,y,z\in\mathbb{R},\ z=2y+z\text{ and }x+z=2y\}
. Subset 4:
W
=
{
(
x
,
y
,
z
)
:
x
,
y
,
z
∈
R
,
(
x
−
1
)
−
y
+
(
z
+
1
)
=
0
and
x
+
y
=
z
}
W=\{(x,y,z):x,y,z\in\mathbb{R},\ (x-1)-y+(z+1)=0\text{ and }x+y=z\}
. Based on the above data, answer the given subquestions.
Question
Subset 1 is a subspace of dimension __________. Enter the numerical value only.
Comprehension
Easy Difficulty
16 October 2022
Your answer