- #1
knowLittle
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Homework Statement
If u is a unit vector, find u.v and u.w
Homework Equations
I assumed that unit vector means u=<1,1,1>
u.v=|u||v|cos60
My knowledge of unit vectors is very limited. I know that a unit vector is
i=<1,0,0>
j=<0,1,0>
k=<0,0,1>
The Attempt at a Solution
Since the triangle is isoceles. |u|=|v|
u.v=(sqrt(3)+sqrt(3) )cos60=-3.29925
Is this correct?
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