I really need help please will mare brainyist. Here is a pyramid with a base that is a pentagon with all sides the same length (
image below) 1.) Describe the cross section that will result if the pyramid is sliced: a horizontally(parallel to the base) b.) vertically through the top vertex (perpendicular to the base): 2.) describe another way you could slice the pyramid that would result in a different cross section.
1 answer:
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Answer with Step-by-step explanation:
We are given that
A and B are matrix.
A.We know that for two square matrix A and B
Then,
Therefore, it is true.
B. det A is the product of diagonal entries in A.
It is not true for all matrix.It is true for upper triangular matrix.
Hence, it is false.
C.
When is a factor of the characteristics polynomial of A then -5 is an eigenvalue of A not 5.
Hence, it is false.
D.An elementary row operation on A does not change the determinant.
It is true because when an elementary operation applied then the value of matrix A does not change.