anonymous
  • anonymous
Find the angle between vector v and the positive x-axis (Give the absolute value of the angle found. Round your answer to two decimal places).
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
The original vector is \[v=3i-9j\]
Loser66
  • Loser66
|dw:1377834127137:dw|
anonymous
  • anonymous
Oh, okay. I think I see where to go next.

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Loser66
  • Loser66
good
anonymous
  • anonymous
So I am seeing: \[\cos (\theta) = \frac{ 9 }{ \sqrt{90}\sqrt{9} }\]
Loser66
  • Loser66
It seems good to me. just one more problem, wonder should we normalize those vectors first? or no need to do that. Ok, no need!! since we cancel out it then.
Loser66
  • Loser66
ok, final decision: take yours. It's good.
Loser66
  • Loser66
I am sorry for my opinions. I took the course 1year ago. Just make sure what I said.
anonymous
  • anonymous
It's okay. Thank you so much for your help!
Loser66
  • Loser66
yw

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