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Math 11 Chapter 3
Matrices and Determinants
Test 4
1.
The matrix in which number of rows and columns are not equal is said to be __________.
a) two row matrix
b) squere matrix
c) rectangular matrix
d) one row matrix
2.
The matrix which has same number of rows and columns is called_________.
a) Square matrix
b) adjugate
c) rectangular matrix
d) linear
3.
For a square matrix A, |A
t
| =__________
a) |2A|
b) |A2|
c) |A|
d) |1A|
4.
If two rows or columns of a matrix are identical then |A| =_________.
a) 2
b) 1
c) -1
d) zero
5.
If all the entries of a row or column of a square matrix are zero then |A| =_______.
a) 2
b) zero
c) -1
d) 1
6.
If a matrix is in triangular form, then the value of its determinant is the product of the entries in _________.
a) the main adjugate
b) the main rectangle
c) the main diagonal
d) the main squere
7.
The value of determinant does not change by interchanging _____ and __________ of the determinant.
a) sign, rows
b) rows, columns
c) number, rows
d) number, columns
8.
The value of a determinant changes its _______ if any two rows are interchanged.
a) column
b) power
c) row
d) sign
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