lyssaboo142 lyssaboo142

08-01-2018
Mathematics

contestada

If |u| = 12, |v| = 8, and u · v = 48, then the angle between |u| and |v| is _____.

a. 0 degrees
b. 30 degrees
c. 60 degrees
d. 90 degrees

Respuesta :

Аноним Аноним

12-01-2018

u . v = |u| |v| cos x

48 = 9*12 cos x

cos x = 48/96 = 1/2

x = 60 degrees answer

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