PG entrance exam CUET PG 2025 Mock Test Engineering Mathematics Linear Algebra System of Linear Equations
If system
(r + a) x + by + cz = 0,
ax + (s + b) y + cz = 0,
ax + by + (t + c) z = 0, has a non-trivial solution,
then \(\frac{a}{r} + \frac{b}{s} + \frac{c}{t} = ?\), where r = s = t ≠ 0
1
2
2
-1
3
-2
4
-4