deandrebryant89
15.01.2020 •
Mathematics
Suppose that a2 = 0 for some matrix a. prove that the only possible eigenvalues of a are then 0.
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Ответ:
The eigenvector of A is not equal to zero, then we can say λ or λ = 0. Therefore, the only possible eigenvalues of A are 0.
Step-by-step explanation:
If we assume that λ is the eigenvalue of the matrix A and the eigenvector of the matrix A is ⁻ˣ. Therefore:
For
we have:
⁻0 = [⁰₀⁰₀][⁻ˣ] = *[⁻ˣ] = Aλ[⁻ˣ] = λ[⁻ˣ]
In the expression above, ⁻ˣ is not equal to zero, then λ = 0 or λ is = 0. This shows that the only possible eigenvalues of A are zero '0'
Ответ:
Given:
Consider the below figure attached with this question.
The given data set is:
66, 65, 66, 70, 66, 68, 63, 60, 66, 68, 63, 65
To find:
The correct box plot for the given data set.
Solution:
We have,
66, 65, 66, 70, 66, 68, 63, 60, 66, 68, 63, 65
Arrange the data set in ascending order.
60, 63, 63, 65, 65, 66, 66, 66, 66, 68, 68, 70
Divide the data set in 4 equal parts by using the parenthesis.
(60, 63, 63), (65, 65, 66), (66, 66, 66), (68, 68, 70)
Minimum value = 60
First quartile:
Median:
Third quartile:
Maximum value = 70
It means the end points of the box plot are 60 and 70. The box lies between 64 and 67. Line inside the box at 66.
The box plot in option A is the only box plot that satisfy the above conditions.
Therefore, the correct option is A.