Question

If the points A (5, 5, λ), B (-1, 3, 2) and C (-4, 2, -2) are collinear, find the value of λ.​

Answer 1

Answer:

Therefore the three given points are A( 5, 5, $\lambda $) , B ( - 1, 3 , 2) and C ( -4 , 2 , -2). As we know that (1) and (2) are proportional. Hence, the value of $\lambda = 10$.