Distance of the point $P\left(\vec{p}\right)$ from the line $\vec{r}=\vec{a}+\lambda \vec{b}$ is a. $\left|\left(\vec{a}-\vec{p}\right)+\frac{\left(\left(\vec{p}-\vec{a}\right)\dot{\vec{b}}\right)\vec{b}}{{\left|\vec{b}\right|}^2}\right|$ b. $\left|\left(\vec{b}-\vec{p}\right)+\frac{\left(\left(\vec{p}-\vec{a}\right)\dot{\vec{b}}\right)\vec{b}}{{\left|\vec{b}\right|}^2}\right|$ c. $\left|\left(\vec{a}-\vec{p}\right)+\frac{\left(\left(\vec{p}-\vec{b}\right)\dot{\vec{b}}\right)\vec{b}}{{\left|\vec{b}\right|}^2}\right|$ d. none of these

Views: 716 students