Dot Products

Find the angle between vectors <1,3> and <2,-5>.

• 40.24°

• 49.76°

• 139.76°

• 92.57°

Q1. What is the result of the following expression: 69 - 6 * 3 + 2?

• 69

• 63

• 57

• -27

• -24

• 24

• 48

• -48

• OB + BC = OC

• OA + AC = OC

• CB + B0 = -OC

• OD = 0.5(OA + AC)

Find the magnitude.

• -10

• -8

• 6

• 10

• Parallel

• Orthogonal

• Neither

Find the dot product of the given vectors:

• 92

• 0

• -92

• -120

If the dot product of two vectors is equal to zero, then what do we know about the two vectors?

• They are parallel.

• They are perpendicular.

• They are unit vectors.

• They are both zero vectors.

Which vector operation is commutative?

• Dot Product

• Vector Projection

• Scalar Projection

• Cross Product

What is the angle between the vectors given?

• 45.3^o

• 111.7^o

• 21.7^o

• 54.6^o