Question 11 - Week 4 Practice | Prasnya
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Qualifier / Quiz 1
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Mathematics 2
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Week 4
Question 11
00:00
Est. 1 min
Marks:
+1.00
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Passage
Let
A
=
[
1
−
1
1
−
1
]
∈
M
1
×
4
(
R
)
A=\begin{bmatrix}1&-1&1&-1\end{bmatrix}\in M_{1\times4}(\mathbb{R})
be a non-zero matrix and
M
M
denote the reduced row echelon form of
A
T
A
A^TA
. Based on the above data, answer the given subquestions.
Question
Find the rank of
A
A
.
Comprehension
Easy Difficulty
13 July 2025
Your answer