Asked by Emily
Find the angle between the vectors ⃗⃗u (-1,4,2 ) and ⃗v (-2,5,1 )
Answers
Answered by
Reiny
⃗⃗u dot ⃗v =| ⃗⃗u| | ⃗v| cosØ, where Ø is the angle between them
2 + 20 + 2 = √21 √30 cosØ
24/(√630 =cosØ
I get Ø = appr 17.02°
check my arithmetic
2 + 20 + 2 = √21 √30 cosØ
24/(√630 =cosØ
I get Ø = appr 17.02°
check my arithmetic
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