Orthogonal Matrices! What now!

Algebra Level 4

If both A − I 2 A-\frac{I}{2} and A + I 2 A+\frac{I}{2} are orthogonal matrices, then

A is skew-symmetric matrix of odd order A is orthogonal A 2 = 3 4 I A^{2} = \frac{3}{4} I A is skew-symmetric matrix of even order

Pranjal Jain by Pranjal Jain , 23, India

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2 solutions

Raj Rajput
Jun 27, 2015

8 Helpful 0 Interesting 0 Brilliant 0 Confused

can u post the solutions pls!! @Pranjal Jain

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Sorry for late reply! See solution posted by @Raj Rajput

Pranjal Jain - 5 years, 11 months ago

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