1. 0
2. 1
3. 3
4. 4
3
1. 1,1,1
2. 1,1,2
3. 1,4,4
4. 1,2,4
1,4,4
1. 1
2. 2
3. N
4. Dependent upon the values of A
1
1. If a=b or =nπ, where n is an integer
2. Always
3. Never
4. If a cos?≠b sin?
If a=b or =nπ, where n is an integer
1. A=-A
2. A?=A
3. A?=1/A
4. None of these
A=-A
1. 0,0,0,0
2. 1,1,1,1
3. 0,0,0,-1
4. 1,0,0,0
1,0,0,0
1. 4
2. 2
3. 1
4. 0
1
1. Orthogonal
2. Non-singular
3. Singular
4. Have A- exists
Non-singular
1. Augmented matrix [Pq] must have the same rank as matrix P
2. Vector q must have only non-zero elements
3. Matrix P must be singular
4. Matrix P must be square
Augmented matrix [Pq] must have the same rank as matrix P
1. Orthogonal
2. Singular
3. Non-singular
4. None of these
Orthogonal