Question

Are the two vectors represented by 2i^+4j^+2k^ and i^+2j^-5k^ perpendicular to each other ??? plzzz answer it ☺️☺️​

Answer 1

Answer:

the two vectors are perpendicular to each other if their dot product is zero

i.e. (2i+4j+2k) . ( i+2j-5k)

= 2+8-10

=10-10

=0.

hence, these two vectors are perpendicular to each other