najjar_jeddah
New member
If ad - bc 6 ? 0, then show that the linear system:
ax + by = k
cx + dy = l
admits a unique solution. What happens if ad - bc = 0?
(Give an argument from scratch, without invoking any theorems.)
ax + by = k
cx + dy = l
admits a unique solution. What happens if ad - bc = 0?
(Give an argument from scratch, without invoking any theorems.)