Equations of Lines and Planes

If two vectors are orthogonal, then their dot product is...

• Scalar

• Zero

• Undefined

• The product of the magnitudes of the two vectors

If two vectors have the same direction angle, then their dot product is...

• Scalar

• Zero

• Undefined

• The product of the magnitudes of the two vectors

Find the angle between u and v.

• 78.930^o
• 33.691^o
• 101.070^o
• 146.310^o

Find the angle between v and w

• 21.8 degrees

• 111.8 degrees

• 68.2 degrees