Let W be the vector space of 3x3 symmetric matrices, A E W. Then, which of the following is true? a) AT = I b) dimW = 6 c) A-1 = A d) A-1 = AT %3D

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Q: 3 2 2 1 a) X1= b) Уi%3D| - 3 y2=| 1 X2= 3 X3= 1 4 y3= 1 3 1 N O

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Q: +0, then the matrix H = I – 2- vv7 is orthogonal and symmetric. Show that if the vector v

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