Cross Product

• -23i+7j-k

• 23i+7j-k

• -2i+j-7k

• -3i+7j-k

Tags

CCSS.HSN.VM.A.1

• i+8j+11k

• 8i+10j+11k

• i+10j-1k

• -i+2j+3k

• 382𝑖−136𝑗+158𝑘

• −382𝑖+136𝑗+158𝑘

• −382𝑖−136𝑗+158𝑘

• −82𝑖−13𝑗+158𝑘

The cross products solution is a vector that is orthogonal to both of the cross products components

• True
• False

The magnitude of the vector product is __________.

• 0

• 1

• 2

• 3

Find the cross product u x v if

u = < 2, 0, 1 > and v = < 0, 0 , -1 >.

• 2

• < 0, 2, 0 >

• -2

• < 0, -2, 0 >

The answer to this is ________.

• 0

• 1

• 
• 

 $If\ \overrightarrow{P\ }\cdot\overrightarrow{Q\ }=\ \left|\overrightarrow{P}\times\overrightarrow{Q}\right|$  , the angle between  $\overrightarrow{P\ }\ and\ \ \overrightarrow{Q}$  is

• 0

•  $\frac{\pi}{2}$  

•  $\frac{\pi}{4}$  

•  $\pi$  

Given vector a and b respectively,  $\overrightarrow{a}=i+4j-7k$  and  $\overrightarrow{b}=5i-2j-3k$  . The vectors are placed tail to tail.

Find cross product of these two vectors,  $\overrightarrow{b}\times\overrightarrow{a}$ 

• 25i + 31j + 23k
  

• 26i + 32j + 22k

• 26i + 31j + 23k

• -26i - 32j + 22k

• 11𝑖-13𝑗+3𝑘

• -11𝑖+13𝑗−3𝑘

• 1𝑖+13𝑗−3𝑘

• 11𝑖+13𝑗−3𝑘