Matrices PYQs.pdf statistics statistics matrix

metrics

1. By: ErDilli Acharya (DA)
matrices
Past Years Questions Discussion

2. By: Er Dilli Acharya (DA)
matrices
Q. Unit matrix is not
a.Diagonal Matrix
b.Square Matrix
c.Null Matrix
d.Scalar Matrix
Type: Past Questions
NRB 2074

3. By: Er Dilli Acharya (DA)
matrices
Q. Two matrices A and B are multiplied (AB) if
a.Both are square
b.Row of A is equal to Column of B
c.Column of A is equal to Row of B
d.Both are rectangular
Type: Past Questions
NRB 2079

4. By: Er Dilli Acharya (DA)
matrices
Q. If in a real square matrix A, its transpose is equal to its
inverse matrix is called
a.Diagonal Matrix
b.Symmetric Matrix
c.Skew Symmetric Matrix
d.Identity Matrix
Type: Past Questions
NRB 2078

5. By: Er Dilli Acharya (DA)
matrices
Q. equals
a.0
b.4ab
c.4-a-b
d.a+b+4
Type: Past Questions
NRB 2075

6. By: Er Dilli Acharya (DA)
matrices
Q. equals
a.a + b
b.a -b
c.(a -b)
2
d.(a + b)
2
Type: Past Questions
NRB 2075

7. By: Er Dilli Acharya (DA)
matrices
Q. If , then x and y is
a.x=1, y=4
b.x=4, y=1
c.x=4, y=2
d.x=1, y=1
Type: Past Questions
NRB 2076

8. Thanks!