Discussion2

C21y Doing the computations by hand, finnd the determinant of the matrix below.

1 3 6 2

Here, A = a b c d = 1 3 6 2

|A| = ad - bc = 12 - 36 = -16 The determinant of the matrix is -16.

library(matlib)

## Warning: package 'matlib' was built under R version 3.5.2

A <- rbind(c(1, 3),
           c(6, 2))

det(A)

## [1] -16