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If A = [(cos alpha , sin alpha),(-sinalp...

If `A = [(cos alpha , sin alpha),(-sinalpha, cosalpha)]`, verify that `A A' = I_2 = A'A`

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PRADEEP PUBLICATION-MATRICES-EXERCISE
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  3. If A = [(cos alpha , sin alpha),(-sinalpha, cosalpha)], verify that A ...

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  5. If A = [(-1,2,-3),(4,-5,6)] and B = [(3,-4),(2,1),(-1,0)], verify that...

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  11. If A and B are symmetric matrices of the same order. Show that A-B is ...

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  12. If A and B are skew-symmetric matrices of the same order. Show that A-...

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  13. If A is any square matrix, show that 1/2(A + A') is symmetric and 1/2(...

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