Question

If the points (0,1,-2),(3,lamda,-1) and (nu,-3,-4) are collinear then the value of lamda and nu are given by

Answer 1

let A,B and C be three collinear points, then vector(B-A), vector(C-B) and vector(C-A) should be proportional.
By equating these
you will solve lambda = 3 and nu = -6.