Let be the skew operator that transforms a 3x1 column matrix into the 3x3 skew- symmetric matrix whose operation is equivalent to a vector cross product. Show that (i) [n] [n]° = nn' -n1. (ii) [n] [n] [n]° =-n° [n] .

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.