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The cofactor of the element '4' in the determinant ____.

4

10

– 10

– 4

this system of equations has ____.

Infinite solution

No solution

Unique solution

None of the above

The value of if is ____.

0

1

– 1

None of the above

If and then the value of is ____.

1/3

½

1

2

The set of matrices forms a group under matrix multiplication as the binary operation. The identity element in it is ____.

Square matrices of the type form a group under the usual matrix multiplication. The identity of the group is ____.

The set under matrix multiplication forms ____.

An abelian group

Non-abelian group

Cyclic group

None of the above

If M is a group under multiplication and M denotes set of all non-singular matrices of the form where a, b, c, d are real numbers, then the inverse of is ____.

If I is a unit matrix, then 3I is ____.

A unit matrix

A triangular matrix

A scalar matrix

None of the above

In a skew symmetric matrix, the diagonal elements are all ____.

Different from each other

Zero

One

None of the above

4

10

– 10

– 4

this system of equations has ____.

Infinite solution

No solution

Unique solution

None of the above

The value of if is ____.

0

1

– 1

None of the above

If and then the value of is ____.

1/3

½

1

2

The set of matrices forms a group under matrix multiplication as the binary operation. The identity element in it is ____.

Square matrices of the type form a group under the usual matrix multiplication. The identity of the group is ____.

The set under matrix multiplication forms ____.

An abelian group

Non-abelian group

Cyclic group

None of the above

If M is a group under multiplication and M denotes set of all non-singular matrices of the form where a, b, c, d are real numbers, then the inverse of is ____.

If I is a unit matrix, then 3I is ____.

A unit matrix

A triangular matrix

A scalar matrix

None of the above

In a skew symmetric matrix, the diagonal elements are all ____.

Different from each other

Zero

One

None of the above

In this test the questions are mainly from matrices and groups

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