Question Id : 15800 |
Context : JEE Main 2019 (9 April Evening Shift)
If a unit vector $\vec{a}$ makes angles $\dfrac{\pi}{3}$ with $\hat{i}$, $\dfrac{\pi}{4}$ with $\hat{j}$ and $\theta\in(0,\pi)$ with $\hat{k}$, then a value of $\theta$ is:
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