If P, Q are n x n orthogonal matrices, then PQT is an orthogonal matrices If P, Q are orthogonal matrices, then P+Q is an orthogonal matrix If P, Q are orthogonal matrices, then PQ is an orthogonal matrix.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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If P, Q are n x n orthogonal matrices, then PQT is an orthogonal matrices
If P, Q are orthogonal matrices, then P+Q is an orthogonal matrix
If P, Q are orthogonal matrices, then PQ is an orthogonal matrix.
Transcribed Image Text:If P, Q are n x n orthogonal matrices, then PQT is an orthogonal matrices If P, Q are orthogonal matrices, then P+Q is an orthogonal matrix If P, Q are orthogonal matrices, then PQ is an orthogonal matrix.
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