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If A is 3xx3 matrix and absA=4 . Operati...

If A is `3xx3` matrix and `absA=4` . Operation `R_2 to 2R_2 + 5R_3` is applied on 2A to get new matrix B .Find `absB`

A

16

B

80

C

128

D

64

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • If A is a 2 xx 3 matrix and AB is a 2 xx 5 matrix, then B must be a

    A
    `3 xx 5` matrix
    B
    `5 xx 3` matrix
    C
    `3 xx 2` matrix
    D
    `5 xx 2` matrix

  • If A is a 2*3 Matrix and AB is a 2*5 matrix, then B must be a :

    A
    3*5 matrix
    B
    5*3 matrix
    C
    3*2 matrix
    D
    5*2 matrix

  • IfAis a 3 xx 2 matrix, B is a 3 xx 3 matrix and C is a 2 xx 3 matrix, then the elements in A, B and C are respectively

    A
    6,9,8
    B
    6,9,6
    C
    9,6,6
    D
    6,6,9

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