Matrices & Determinants Quiz 2 – Punjab Meritorious School Preparation Portal

Welcome to your 29th July Matrices & Determinants Quiz 2 CBT TEST

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If a, b and c are in AP, then the value of

is

If a, b and c are in AP, then the value of

If a, b and c are in AP, then the value of

If a, b and c are in AP, then the value of

If a, b and c are in AP, then the value of

-6

-5

-4

4

If I denotes the 3 × 3 identity matrix and P is a matrix obtained by rearranging the columns of I. Then,

there are six distinct choices for P and det (P) = 1

there are six distinct choices for P and det (P) = ± 1

there are more than one choices for P and some of them are not invertible

there are more than one choices for P and P-1 = I in each choice

The number of 3 × 3 non-singular matrices, with four entries as 1 and all other entries as 0 is

less than 4

5

6

atleast 7

0

1

4 log e

5 log e

0

1

xyz

log xyz

The sum of products of the elements of any row of a determinant A with the cofactors of the corresponding elements is equal to

2

3

0

1

Statement I Determinant of a skew-symmetric matrix of order 3 is zero.

Statement I is correct and Statement II is incorrect

both statements are correct

both statements are incorrect

Statement I is incorrect and Statement II is correct

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