JEE PYQ: Matrices And Determinants Question 88
Question 88 - 2019 (12 Jan Shift 2)
An ordered pair $(\alpha, \beta)$ for which the system of linear equations $(1 + \alpha)x + \beta y + z = 2$, $\alpha x + (1 + \beta)y + z = 3$, $\alpha x + \beta y + 2z = 2$ has a unique solution, is:
(1) $(2, 4)$
(2) $(-3, 1)$
(3) $(-4, 2)$
(4) $(1, -3)$