Find the shortest distance between the following pairs of parallel lines whose equations are :
Channel: Doubtnut
Date: 2020-05-09

Find the shortest distance between the following pairs of parallel lines whose equations are :   `vec(r)=(hat(i)+2hat(j)+3hat(k))+t(hat(i)-hat(j)+hat(k))` and `vec(r)=(2hat(i)-hat(j)-hat(k))+s(-hat(i)+hat(j)-hat(k))`