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anonymous
 one year ago
Could someone please help me? I'm trying to figure out the problem, but none of the answer choices are what my final answer is coming out to be.
Find the angle between the given vectors to the nearest tenth of a degree.
u = <2, 4>, v = <3, 8>
A. 3.0 Degrees
B. 6.0 Degrees
C. 7.0 Degrees
D. 16.0 Degrees
I keep getting around 0.99
anonymous
 one year ago
Could someone please help me? I'm trying to figure out the problem, but none of the answer choices are what my final answer is coming out to be. Find the angle between the given vectors to the nearest tenth of a degree. u = <2, 4>, v = <3, 8> A. 3.0 Degrees B. 6.0 Degrees C. 7.0 Degrees D. 16.0 Degrees I keep getting around 0.99

This Question is Closed

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I'm assuming you computed \[\Large \frac{u \cdot v}{u*v} = 0.9945054529214\] correct?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Apply the arccosine function to both sides to isolate theta \[\Large \cos(\theta) = \frac{u \cdot v}{u*v}\] \[\Large \cos(\theta) = 0.9945054529214\] \[\Large \arccos(\cos(\theta)) = \arccos(0.9945054529214)\] \[\Large \theta = ???\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh! So the answer would be 6??

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yeah arccos(0.9945054529214) = 6.00900595749781
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