Q4 of 138 Page 24

If the vectors and are orthogonal, find m.

Orthogonal vectors are perpendicular to each other so their dot product is always 0 as cos90°=0


If A⃗ = , B⃗ =



And


6-m-8=0


-m-2=0


m=-2


More from this chapter

All 138 →
2

If are two vectors such that Write the projection of on

 3

Find the cosine of the angle between the vectors and

5

If the vectors and are parallel, find the value of m.

 6

If are vectors of equal magnitude, write the value of