Matrices

Subject matter experts of JagranJosh have developed chapter wise practice questions of Class 12th as per the relevancy of the chapter in the CBSE board exam. This practice set contains questions with detailed explanations on “Chapter: Matrices” of Mathematics.

  • Q1. The value of x for which [ 1 x 1 ][ 1 3 2 2 5 1 15 3 2 ][ 1 2 x ]=is:

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  • Q2. If IA=[ 2 0 1 5 1 0 0 1 3 ], then inverse of matrix is:

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  • Q3. If A is square matrix such that  A 2 =A, Then  ( I+A ) 3 =?

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  • Q4. If the matrix [ 0 a 3 2 b 1 c 1 0 ]  is a skew symmetric matrix,  then the values of a, b and c are:

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  • Q5. If A=[ 1 2 4 1 ], then the value of  A 2 +2A+7I is:

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  • Q6. The element  a 12  of the matrix A= [ a ij ] 2×2  whose elements  a ij are given by  a ij = e 2ix sinjx  is:

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  • Q7. On using elementary column operations  C 2    C 2  2 C 1  in  the following matrix equation [ 1 3 2 4 ]=[ 1 1 0 1 ][ 3 1 2 4 ], we have:

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