10. question in the pic ...pls send the full solution also with the option

Dear Student,

A square matrix is a matrix which has same number of rows and same number of columns.

So as we can see here that it has 3 rows and 3 column 

So,it is a square matrix.

Also, if we observe all the elements in the matrix then we can see that all elements are zero except the diagonal elements and as

Digonal Matrix is defined as where all the elements are zero except for the elements that are present diagonally.

So, its a diagonal matrix too.

Hope it helps.


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Diagonal as well as square matrix both B and D are correct read the definition on class 12th NCERT Chapter 3 Matrix
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