Question: (quad mathbf{P}^{mathbf{T}} mathbf{M P}=mathbf{I}) where (mathbf{P}) is the modal matrix and (mathbf{I}) is the identity matrix. Indicate whether the statement presented is true or false.

\(\quad \mathbf{P}^{\mathbf{T}} \mathbf{M P}=\mathbf{I}\) where \(\mathbf{P}\) is the modal matrix and \(\mathbf{I}\) is the identity matrix.

Indicate whether the statement presented is true or false. If true, state why. If false, rewrite the statement to make it true.

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