Question

question in attachment

Answer 1

@math&ing001

Answer 2

step by step please :)

Answer 3

@satellite73

Answer 4

@surjithayer

Answer 5

help !!

Answer 6

@ybarrap

Answer 7

@surjithayer please heeeeelp

Answer 8

@Mertsj

Answer 9

@satellite73

Answer 10

your question is not clear.

Answer 11

@ybarrap

Answer 12

can you help with this one again @ybarrap

Answer 13

a.is it vector a perpendicular vector b ?

Answer 14

if so
\[a.b=\left| a \right|\left| b \right|\cos 90=\left| a \right|\left| b \right|\left( 0 \right)=0\]