Three Dimensional Geometry

$\frac{\hat{i} \cdot \vec{n}}{d}, \frac{\hat{j} \cdot \vec{n}}{d}, \frac{\hat{k} \cdot \vec{n}}{d}$

$\left|\frac{\hat{i} \cdot \hat{n}}{d}\right|,\left|\frac{\hat{j} \cdot \vec{n}}{d}\right|,\left|\frac{\hat{k} \cdot \vec{n}}{d}\right|$

$\frac{d}{\hat{i} \cdot \hat{n}}, \frac{d}{\hat{j} \cdot \hat{n}}, \frac{d}{\hat{k} \cdot \hat{n}}$

$\frac{d}{\hat{i} \cdot \vec{n}}, \frac{d}{\hat{j} \cdot \vec{n}}, \frac{d}{\hat{k} \cdot \vec{n}}$