The volume of the tetrahedron whose vertices are the points with position vectors
Channel: Doubtnut
Date: 2020-05-24

The volume of the tetrahedron whose vertices are the points with position vectors `hat(i)+hat(j)+hat(k), -hat(i)-3hat(j)+7hat(k), hat(i)+2hat(j)-7hat(k) and 3hat(i)-4hat(j)+lambdahat(k)` is 22, then the digit at unit place of `lambda` is.