Angle between vectors

Find the angle between the given vectors to the nearest tenth of a degree. u = (-22, 11) and v = (16, 20)

Correct answer:

A =  0 °

Step-by-step explanation:

u=(22)2+112=11 524.5967 v=162+202=4 4125.6125 s=(22) (16)+(11) (20)=132 A=180πarccos(s/(u v))=180πarccos((132)/(24.5967 25.6125))102.0948=0

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