Question

Show that the vectors a=2i-3j+4k and b=-4i+6j-8k are perpendicular

Answer 1

Step-by-step explanation:

if two vectors are perpendicular to each other then

a1/b1 = a2/b2 = s3/b3 = k ( constant )

here ,

2/-4 = -3/6 = 4/-8 = -1/2

which is constant

Thus , the given two vectors are perpendicular