Cal III Dot & Cross Product

• < - 44, 6, - 46>
• 34
• < - 44, - 6, - 46>
• < 6, 16, 12>

Calculate the cross product of <1, -2, 1> and <2, -1,1>

• 5

• 3

• < -1, -1, 3>

• < -1, 1, 3>

Find the cross product of <3,4,7> and <4,9,2>.

• <-55, 22, 11>

• <-55, -22, -9>>

• <71,34, 63>

• <-71, -34, -63>

What is the magnitude of the vector 4i + 3j ?

• (4, 3)

• 7

• 5

• 25

Tags

CCSS.HSN.VM.A.1

Find the dot product of the given vectors:

• 92
• 0
• -92
• none of the above

Find the magnitude of the vector <2, -3>.

• √11
• 13
• √-4
• √13

Tags

CCSS.HSN.VM.A.1

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

• 1
• <3, -4>
• <4, 0>
• -1

How do you know if two vectors are orthogonal?

• Their sum is 0.
• The dot product is 1.
• The angle between them is 0°.
• The dot product is 0.

The y value of the vector product is ________.

• -4

• 4

• 8

• -8