Data605-Week2-Discussion2-kamath

Exercise- Determinants - C25

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#defining the matrix:
A <- matrix(c(3, 2, 2, -1, 5, 0, 4, 1, 6), 3, 3)
A

##      [,1] [,2] [,3]
## [1,]    3   -1    4
## [2,]    2    5    1
## [3,]    2    0    6

#Doing manually :
(3 *(5*6 - 1*0) ) - ( -1 *(2*6 - 2*1) ) + ( 4 *(2*0 - 2*5))

## [1] 60

#Using R funtion to validate the output:
det(A)

## [1] 60

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