Knowledge Of Matrices Watch

Deeboss
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Gungu
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atsruser
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(Original post by Deeboss)
Q18) Which of the following statements are correct for rotation matrix?

1) The transpose of a rotation matrix is NOT a rotation matrix.

2) The transpose of a rotation matrix is also a rotation matrix.

3) The row vectors of a rotation matrix are mutually orthogonal.

4) The row vectors of a rotation matrix are all unit vectors.

5) The inverse of a rotation matrix is the same as the transpose of the rotation matrix.

Through online research and reading I just need to check if my answers are right.

2,3,4,and 5 are the correct statements, and the 1st is wrong, am I right? Please confirm on this and correct me if I am wrong.
That looks to be correct.
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