Answer:
146.41
Step-by-step explanation:
third order determinant = determinant of 3×3 matrix A
given ∣A∣=11
det (cofactor matrix of A) =set (transpare of cofactor amtrix of A) (transpare does not change the det)
=det(adjacent of A)
{det (cofactor matrix of A)} ^2 = {det (adjacent of A)}
^2
(Using for an n×n det (cofactor matrix of A)=det (A)^n−1
)
we get
det (cofactor matrix of A)^2 = {det(A) ^3−1
}^2
=(11)^2×2 = 11^4
=146.41
Answer: try 314
Step-by-step explanation:
100 times 6 times 3.14
Answer:
Step-by-step explanation:
4/5 - 9/15 =
12/15 - 9/15 =
3/15 reduces to 1/5
so he spent 1/5 of an hr more cleaning
