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anonymous
 5 years ago
Find the angle between the vectors u and v if u = (1, 2) and v = ( 4,  2). Round answer to two decimal places.
A.141.20o
B.141.89o
C. 143.13o
D. 144.09o
E. 144.54o
anonymous
 5 years ago
Find the angle between the vectors u and v if u = (1, 2) and v = ( 4,  2). Round answer to two decimal places. A.141.20o B.141.89o C. 143.13o D. 144.09o E. 144.54o

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nowhereman
 5 years ago
Best ResponseYou've already chosen the best response.0use scalarproduct and acos

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok well I don't know what scalarproduct is but I have cosθ=u.v/IIuII IIvII

nowhereman
 5 years ago
Best ResponseYou've already chosen the best response.0yes, that u.v is the scalarproduct.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the angle between vector is cool....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0<1,2> . <4,2> = 4 + 4 = 8   sqrt(5) sqrt(20) = sqrt(100) = 10 cos(t) = 4/5

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ive been reading about vectors allll week ;)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0and that is the extent of my knowledge so far lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Thank you this actually make's sense too... I was missing the t=cos^1(4/5)
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