A vector r makes angles of 45°, 60°, 120° with X, Y and Z-axis respectively.

Question

A vector \(\vec{r}\)makes angles of 45°, 60°, 120° with X, Y and Z-axis respectively. If magnitude of \(\vec{r}\) is 2 units then find  \(\vec{r}\)

Answer 1

\(\frac{\vec{a}}{|\vec{r}|} = l\hat{i} + m\hat{j} + n\hat{k}\)