What degree of rotation is represented on this matrix

Option B is correct

the degree of rotation is,

Step-by-step explanation:

A rotation matrix is a matrix that is used to perform a rotation in Euclidean space.

To find the degree of rotation using a standard rotation matrix i.e,

Given the matrix:

Now, equate the given matrix with standard matrix we have;

=  

On comparing we get;

      and  

As,we know:

we get;

and

we get;

Therefore, the degree of rotation is,

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step-by-step explanation: