Can't determine the angle. Urgent help please.

  • Thread starter meanyack
  • Start date
  • #1
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Homework Statement



Please find the attachment for vectors. If I know [tex]\alpha[/tex], [tex]\beta[/tex] & [tex] \theta [/tex] (colored angles) how can I find the angle between vectors C and D in terms of [tex]\alpha[/tex], [tex]\beta[/tex] & [tex] \theta [/tex]?

Homework Equations



Cross product & dot product

The Attempt at a Solution

 

Attachments

Answers and Replies

  • #2
The cross product is defined by u X v = |u||v|sin(angle). Solve for the angle.
 
  • #3
20
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At first glance, it seems easy. But when you try to find the angle between vector C and plane consisting A and B, then it seems complicated. So is there any way to calculate it easily?
 

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