Question 24 - Week 8 Practice | Prasnya

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Week 8

SubjectMathematics 2

Question 24 of 43

Passage question

00:00Est. 1 min

Marks+0.500.00

Passage

The columns of

A=\frac1a\begin{bmatrix}1&-2&2\\2&-1&-2\\2&b&c\end{bmatrix}

are orthonormal. Answer the subquestions.

Question

If

A^T A + A A^T = kI

, where

k

is a scalar and

I

is the identity matrix, find

k

.

ComprehensionEasy Difficulty04 August 2024

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