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If-both-A-I-2-and-A-I-2-are-orthogonal-matrices-then-prove-that-A-2-3-4-I-




Question Number 41392 by rahul 19 last updated on 06/Aug/18
If both A− (I/2) and A+(I/2) are orthogonal  matrices, then prove that   A^2 = −(3/4) I.
IfbothAI2andA+I2areorthogonalmatrices,thenprovethatA2=34I.
Commented by rahul 19 last updated on 07/Aug/18
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