1. if a=b or = n , where n is an integer
2. always
3. never
4. if a cos ? ≠ b sin ?
if a=b or = n , 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
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 exists
Have exists
1. Augmented matrix [pq] must have the same ranks as matrix p
2. Vector q must have only non-zero elements
3. Matrix p must be singular
4. Matrix must be square
Augmented matrix [pq] must have the same ranks as matrix p
1. Orthogonal
2. Singular
3. Non singular
4. None of these
Orthogonal
1. (0,0)
2. (1,1)
3. (0,1)
4. (1,2)
(0,0)
1. 1
2. 2
3. 3
4. 5
2
1. 2
2. 4
3. 6
4. 8
8