Tentukan invers matriks A =(3 1) (2 -1)
Matematika
yusfat190917
Pertanyaan
Tentukan invers matriks A =(3 1)
(2 -1)
(2 -1)
1 Jawaban
-
1. Jawaban nunikeka
A invers=1/ad-bc [d -b]
[-c a]
= 1/3.(-1)- 1.2 [-1 -1]
[-2 3]
=1/-3-2 [-1 -1]
[-2 3]
=1/-5 [-1 -1 ]
[-2 3]
=[1/5 1/5]
[2/5 -3/5]
ini klo gk slah