JEE PYQ: Vector Algebra Question 47
Question 47 - 2019 (12 Jan Shift 2)
The sum of the distinct real values of $\mu$, for which the vectors, $\mu \hat{i} + \hat{j} + \hat{k}$, $\hat{i} + \mu \hat{j} + \hat{k}$, $\hat{i} + \hat{j} + \mu \hat{k}$ are co-planar, is:
(1) $-1$
(2) $0$
(3) $1$
(4) $2$