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If the given matrix A is of order 5\times 4 and the element  a_i_j = i^2+j^2,  then which of the the following is true ?  

  • Option 1)

    a_2_3+ a_1_1= a_{34}

  • Option 2)

    a_{36}=a_6_3

  • Option 3)

    a_2_1+ a_2_3= a_{33}

  • Option 4)

    a_1_2+ a_3_2= a_{44}

 

Answers (1)

best_answer

As we have learned

Representation of matrix -

- wherein

matrix of order \large m\times n.  \large a_{ij^{}} - element of the ith row and jth column 

 

 a_{21}= 2^2+1^2= 5

a_{23}= 2^2+3^2= 13

a_{33}= 3^2+3^2= 18 ;

Thus a_{33}= a_{23}+a_{21}

 

 

 

 

 

 


Option 1)

a_2_3+ a_1_1= a_{34}

Option 2)

a_{36}=a_6_3

Option 3)

a_2_1+ a_2_3= a_{33}

Option 4)

a_1_2+ a_3_2= a_{44}

Posted by

Himanshu

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