Question

show that the points p(-2 3 5) q(1 2 3) r(7 0 -1) are collinear​

Answer 1

Answer:

p (-2,3,5) = x¹,y¹,z¹

q (1,2,3) = x²,y²,z²

r (7,0,-1) = x³y³z³

x¹+x²+x³ = -2+1+7 = 6

y¹+y²+y³ = 3+2+0 = 5

z¹+z²+z³ = 5+3-1 = -7

hence p , q and r are not collinear points

hope this helps you ☺️