Dot Products

u*v

• -82

• -58

• 82

• 58

Find the angle between v and w

• 21.8 degrees

• 111.8 degrees

• 68.2 degrees

• A

• B

• C

• D

• A

• B

• C

u = <3, -9, -2> v = <-5, 4, 10>

Find u ⋅ v

Let vectors u = 7i + 4j - 3k and v = -4j+2k.

What is u*v?

Find the dot product of <1, -2> and <3, 2>.

• 1

• <3, -4>

• <4, 0>

• -1

What type of quantity is produced by the dot product of two vectors?

• scalar

• vector