Jee Main
Vector Algebra
JEE Main 2024 (Online) 27th January Morning Shift
INTEGER+4 / -12024
The least positive integral value of $\alpha$, for which the angle between the vectors $\alpha \hat{i}-2 \hat{j}+2 \hat{k}$ and $\alpha \hat{i}+2 \alpha \hat{j}-2 \hat{k}$ is acute, is ___________.