Question

Solve the equations 6ݔ + ݕ − 3ݖ = 5, ݔ + 3ݕ − 2ݖ = 5 and 2ݔ + ݕ + 4ݖ = 8
by Cramer’s rule.
(ii) Find the inverse of the matrix ൥
1 2 −1
3 8 2
4 9 −1
൩.

Answer 1

Answer:

I dont no thise language sorry