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If P is a 3 x3 matrix such that `P^T=2P+I`, where `P^T` is the transpose of P and I is the 3 x 3 identity matrix, then there exists a column matrix `X= [[x],[y],[z]] !=[[0],[0],[0]]` such that
A. |
PX=`[[0],[0],[0]]` |
B. |
PX=X |
C. |
PX=2X |
D. |
PX=-X |
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