Vector of given length from the angles it makes with the axes

1. A.
   $\bar{r} = \pm 3\hat{i} + 3\hat{j}$
2. B.
   $\bar{r} = \hat{i} + \hat{j}$
3. C.
   $\bar{r} = \pm 2\hat{i} + 3\hat{j}$
4. D.
   $\bar{r} = \pm 5\hat{i} + \hat{j}$

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1. A.
   $\dfrac{\pi}{3}, \dfrac{2\pi}{3}$
2. B.
   $\dfrac{\pi}{6}, \dfrac{5\pi}{6}$
3. C.
   $\dfrac{\pi}{4}, \dfrac{5\pi}{4}$
4. D.
   $\dfrac{5\pi}{12}, \dfrac{7\pi}{12}$

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1. A.
   $\hat{i} \pm 3\hat{j}$
2. B.
   $\hat{i} \pm \hat{j}$
3. C.
   $-\hat{i} \pm \hat{j}$
4. D.
   $\pm 3\hat{i} + 3\hat{j}$

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1. A.
   $\vec{r} = 6\sqrt{2}\hat{i} - 6\hat{j} + 6\hat{k}$
2. B.
   $\vec{r} = 6\sqrt{2}\hat{i} \pm 6\hat{j} \pm 6\hat{k}$
3. C.
   $\vec{r} = 6\sqrt{2}\hat{i} + 6\hat{j} \pm 6\hat{k}$
4. D.
   $\vec{r} = 6\sqrt{2}\hat{i} - 6\hat{j} - 6\hat{k}$

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