Find the value of λ so that the following vectors are coplanar.
Formula : -
Given: -
we know that vector are coplanar if their scalar triple product is zero
we have
now, using
⇒ 0 = 1(2 λ – 2) – 2(6 – 1) – 3(6 – λ)
⇒ 0 = 5 λ – 30
⇒ λ = 6