Question
The vector $\hat{i} + x\hat{j} + 3\hat{k}$ is rotated through an angle $\theta$ and is doubled in magnitude. It now becomes $4\hat{i} + (4x - 2)\hat{j} + 2\hat{k}$. The values of $x$ are:
The vector $\hat{i} + x\hat{j} + 3\hat{k}$ is rotated through an angle $\theta$ and is doubled in magnitude. It now becomes $4\hat{i} + (4x - 2)\hat{j} + 2\hat{k}$. The values of $x$ are: