Question

2x + 5y = 27; 7x + 5y = 7 then Det is
A. Det = 45
B. Det = 25
C. Det = - 25
D. Det = -45​

Answer 1

Answer:

Then y = c1e0x + c2xe0x +c3 cos 2x+c4 sin 2x. ... An expected detail is the cofactor expansion of det(A−λI) and ...