Question

If Avector and Bverctor are perpendicular to each other ,
Avector = 2i + lembada jvector +kvector , Bvector =4ivector -2jvector -2kvector ,find thr lembda

Answer 1

Hey mate here is your answer :

Avector perpendicular to Bvector
Avector . B vector = 0

2.4 + lembda.(-2) + 1*(-2) = 0

8 - 2lembda -2 = 0

6 = 2lembda

lambda = 3

Answer 2

Hey buddy __

Answer is given above ___

Thank you