Question

Show that vectors a=2i+3j+6k,b=6j+2k and c=6i+2j-3k are mutually perpendicular​

Answer 1

Answer:

here is ur answer

Explanation:

vectors are perpendicular

it means that their dot product must be equal to zero.

Acc,

(2i - 6j + k) . (5i +2i + ak)=0

(10-12+a)=0

a=2