- #1
SolfegeDuck
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Homework Statement
Quick question. I need to find cos [tex]\vartheta[/tex], where [tex]\vartheta[/tex] is the angle (acute) between two vector-valued functions (which are tangent lines).
Homework Equations
I think this is relevant:
cos[tex]\vartheta[/tex] = (u dot v)/([tex]\left\|[/tex]u|| * [tex]\left\|[/tex]v||)
The Attempt at a Solution
Is that the correct equation to use? If so, well, the two equations I'm using both have "t" in them, since they're VVFs. But what do I put in for t? I get the feeling that it's blatantly obvious...Thanks for helping!