Exercise 603

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Confirm Answer

mat = matrix(c (1,3,2,4,1,3,1,0,1), ncol=3 , nrow=3, byrow=T)
print(mat)
##      [,1] [,2] [,3]
## [1,]    1    3    2
## [2,]    4    1    3
## [3,]    1    0    1
print(det(mat))
## [1] -4